I won’t take credit for this one. I only followed the instructions from Mini Eco which you can find here.

What you’ll need:
A4 paper
A pair of scissors
Ruler
Glue
Thread

I thought it would be easy to make but it was a challenge to glue the flaps together!  Lots of cutting and patience are needed in this project but very rewarding.  My kids really liked them, and instead of my initial plan to hang these gems as a decor, they ended up as toys for my kids.  They played pirates and hunted the gems. (:

This other one was used a pendant by my daughter. Cool, eh?