If you have a pot of boiling water and some borax, then I highly recommend trying this little experiment out, kids or no kids. This post had this link. Her hearts are much prettier and the picture a little more artsy than mine... but I am telling you I felt just like a kid when we found the 'diamonds' the next day. I have to say that hours after doing what the instructions said I had my doubts... it just looked like water, nothing special. We were in for a huge surprise!!! So, I double dog dare you... you could even get creative and do shamrocks!!!!