You could make a clay hedgehog!
Hattifant's Tutorial for DIY Clay Mobile Phone & Cell Phone Holders. I will try to use this idea to hold the stones
These DIY tea strong holders are so cute
Fisherman Tea Bag Holder Set - Urban Outfitters Could easily DIY with polymer clay
Check out this DIY Clay Turtle Ring Holder. It is made with the Pottery Cool machine by /spin_master/. Make fun clay creations, allow them to dry, and then paint them.
Gorgeous 30 Easy DIY Polymer Clay Beads Ideas https://roomadness.com/2017/11/25/30-easy-diy-polymer-clay-beads-ideas/