Steampunk Stepping Stones

We love finding old coins and keys at the flea market. We'd been keeping them in jars, until we had the idea to turn them into Steampunk Stepping Stones! Now we get to see our collections on display in the garden!
The project turned out to be so easy, we gathered some sea glass and marbles and made more! Here's how we did it.
The first thing we did was collect keys! We actually have been collecting them for years. They are easy to find at garage sales, flea markets, and even your own junk drawer! (Just make sure you don't still need it them!)
To make the stepping stones, we got some concrete mix at the hardware store. You just mix it with water! Easy! (To see the amounts we used, check out the complete instructions on our blog at
We picked up some molds at the craft store. They came in circles and squares, and they were so cheap we got one of each! Once the concrete was mixed, we just spread the mix into the mold.
Our Steampunk Stepping Stones turned out so cool, we made another batch with colorful flat marbles from the dollar store!

To see the complete how-to, including how to mix the concrete and how to reinforce the stepping stones for heavy traffic, come over to our blog at We have loads of flea market projects, and we are always available if you have any questions. Just leave us a comment and we'll reply!


Jennifer & Kitty, The O'Neil Sisters
Jennifer & Kitty O'Neil
Want more details about this and other DIY projects? Check out my blog post!
Frequently asked questions
Have a question about this project?
3 of 5 questions
  • Cecila Moore Cecila Moore on Feb 12, 2016
    Is there a way to add color to the cement before it drys?

  • Char J Char J on Mar 13, 2016
    Did you leave the keys embedded in the cement, or just their impressions? How do you clean any cement off if you want to re-use the keys? Great job!

  • They look a little rough to walk on. Is there any way they can be smoothed out?

Join the conversation
2 of 139 comments
  • Sandy Langley Sandy Langley on Dec 19, 2018

    I Love it. Thank you so much. Collecting keys , washers, etc. Great idea !!!❤️

  • Kelly Kelly on Jul 17, 2020

    People do this a lot in Hawaii, but we can't seem to get the cement to contain the tiles, etc. that we put on top of the cement. Is it because of the humidity or is there a secret to getting stuff to stay on top of the cement. Yes, we press it in very firmly. Thanks!