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How to make treasure stones

Posted by  ·  March 4, 2011  ·  Last Updated: April 30, 2016

 These homemade rocks would also make awesome party favors for a rock climbing party, “you rock” themed party or shape them like an egg for a dinosaur party.

How to make a Blarney Stone with a hidden treasure

Tradition says if you kiss the Blarney Stone you will be given the gift of gab. You will be able to talk eloquently and convincingly. I don’t think these girls need any help with the gift of gab, but we still thought we would make these Blarney Stones. A treasure can be found in the middle of each stone.


Homemade Rocks Recipe

Mix up:

  • 1 cup used coffee grounds (or used dry espresso grounds–what we had) If they are too wet I am sure it would change the color of the mixture
  • 1/2 cup salt
  • 1/4 cup sand
  • 1 cup flour
  • 3/4 cup water
  • (I think it would be very easy to tint this mixture with tempera paint—they might be dull colors when dry)

Mix together dry ingredients and then slowly add enough of the water to make a stiff dough—you might not need all off the water, so add slowly.

Knead the mixture on a floured surface until fairly smooth.


Break the dough into desired sizes. We divided it into 4 equal pieces. Hide your trinkets (super balls, small plastic toys, etc.) or money in the center of each ball of dough.

blarney-stones-4.jpg blarney-stones-5.jpg

Bake at 150F degrees for 2 hours (I turned them over half way through) and then air dry 2-3 days (or longer). If you make smaller rocks I would dry one hour in the oven and then air dry 2 days or more. The size of rock and the amount of humidity in your home will affect the drying time. They will look and feel like rocks when dry.


I had hoped to paint them with green and white paint for fun and wait to open them on St Patrick’s Day, but nobody was willing to wait to crack them open with a hammer— let alone wait for paint to dry.


I think we might make some egg shaped ones for Easter.

Filed Under: Crafts for kids, Make  |  Tagged as: , , , ,


  1. Thursday, April 16th, 2015
    This is so cool, I am going to have to have some fun with my girls this weekend. I love finding activities we can do as a family that don't always involve TV, video games, or movies. My oldest is going to love this idea!
  2. Friday, November 15th, 2013
    Thanks for this great tutorial! I threw an "Around the World" birthday party for my daughter. We travelled to 5 different countries and did a craft and an activity from each country. We did this as part of our "trip" to Egypt. They did an archeological dig to find these stones and crack them open to find their treasure. I posted a link to this on my blog: www.cindyscreativecuts.com.
  3. ehff thensa
    Saturday, August 3rd, 2013
    hello! this is awesome, I will enjoy making some stones for placement it's a great idea. I wonder, do you know if it's possible to coat a large object with this mix and let it air dry? or does it require baking? I am making a garden pedestal, and themore stone like the exterior, the better. (to weatherization, coat it with yacht varnish.)
  4. Sue L.
    Thursday, February 28th, 2013
    I have a great idea! Insert an invitation in the rock, coming with instructions to break and find a clue inside. This party Rocks!!! These could be given out at school, dropped off on doorways with a note connected, or it could be tossed out with other rocks in the garden which some unsuspecting person would accidentally break and have a surprise.This could start a chain reaction of thrown rocks to find other messages-Oh Oh, what have you done!!!- Thanks SL>
  5. odllovesjdl
    Monday, September 10th, 2012
    Oh little ones painted black for coal in a stocking....awesome ideas.
  6. Thursday, April 21st, 2011
    I love this!! I can't wait to try it out!
  7. Monday, March 14th, 2011
    this is a great Idea to use ,used coffee grounds and have fun too my grandson will love it. You can also mix used coffee grounds into the soil in your garden worms are attracted to them somehow and helps the ground
  8. Monday, March 7th, 2011
    That is a super cute idea. Love it!
  9. Monday, March 7th, 2011
    I love this idea especially for easter! I featured it on my fun (and thrifty) Spring ideas blog post: http://creativecarissa.blogspot.com/2011/03/countdown-to-spring-more-great-and.html

    Thanks so much for sharing. I've never seen anything like this. I think this post has single-handedly changed the way we will be doing easter egg hunts in our house for years.
  10. Nancy M
    Sunday, March 6th, 2011
    I love, love, love this idea!

    To Nicole above: you can usually get used coffee grounds at your local coffee shop. I know Starbucks and other chains have coffee grounds available for those who compost.
  11. Saturday, March 5th, 2011
    I love this! I can't believe I have never seen something like this before, thanks so much!
  12. Saturday, March 5th, 2011
    i love this idea!! i think it would be great for easter - with loonies in them (canadian dollar coins). love your blog BTW.
  13. Nicole
    Saturday, March 5th, 2011
    Wow, fantastic idea! I just have one question...is there a substitute for the used coffee grounds? We don't drink coffee in our home but would love to tackle this fun project!!

    Thanks a bunch for sharing!
  14. terrie lynn
    Friday, March 4th, 2011
    First I had ever heard of these. where have I been all these years? LOL Look like alot of fun.....thanks for the idea.
  15. Friday, March 4th, 2011
    I am always in awe how you think of EVERYTHING! Very cool!
  16. Amber
    Friday, March 4th, 2011
    Another great idea that we used for a dinosaur party is using this same mixture and then we pressed play doh cookie cutters in to make "fossils", when it was wet. We put a hole at the top and the kids hung them with some ribbon. It was an easy birthday craft!! And the kids loved it.
  17. Friday, March 4th, 2011
    This is such a cute idea!!
  18. Friday, March 4th, 2011
    These would be awesome if your kid is into dinosaurs! You could hid dinos in them for "excavating" or make them into dino eggs!
  19. Maren
    Friday, March 4th, 2011
    Really great idea! Did this last year as a money-birthday present - i just covered the money with aluminium foil. Thank you :)
  20. Renee Strange
    Friday, March 4th, 2011
    You're girls are just precious! My Mom wasn't crafty, and I know your girls will have fond memories of doing projects with you!
  21. Melanie
    Friday, March 4th, 2011
    Great idea - my daughter turns 18 this month - She's getting a rock!!! oh with a $ surprise in it!!! Thanks
  22. Friday, March 4th, 2011
    FABULOUS! SUPER thanks for shaing. Can't wait to make them-and a surprise one for my hubby! Just found your blog. LOVE IT!
  23. Friday, March 4th, 2011
    We did this for our dragon birthday party. We had handmade dragon wings and dragon decorations and dragon eggs! The kids loved them. The eggs had little plastic dragons inside and they 'hatched' the eggs with water and hammers. Ours didn't break open quite as easy as yours look like they did. Kids really do love this idea!
  24. Friday, March 4th, 2011
    LOVE IT! That's a perfect idea! Thanks so much for sharing!
  25. Friday, March 4th, 2011
    Easter! Great idea!! You could use it as a picture of how Jesus defeated the tomb!! I love that!!!