Each is 3mm (yes, millimeters) tall. They are made from Sculpey Bake and Bend and are painted with acrylic paint (applied with a size 000 brush). A lot of the details, like Rainbow Dash’s mane and Applejack’s hair ties, are sculpted, NOT painted on.
These little lovelies took about a half an hour each to make. I made these more as a novelty than anything else, an experiment to see just how tiny I could make ponies (and AJ has a hat. Take that, Hasbro). I will gladly make more if you’d like to incorporate them into a pendant. They are also roughly the correct size for blind bag ponies for a 1:12 scale doll.
I agree, its a novelty coin.