Mighty Jaxx
From Equestripedia, the Archives of Equestria!
Mighty Jaxx is a toy manufacturing company known for making highly-detailed figures and busts. Their work in the My Little Pony series hs been that of creating 'x-ray' toys that depict the ponies inner organs and bones. As of 2021, they have two lines, Freeny's Hidden Dissectibles and XXRAY Plus.[1] All art is presumably done by Jason Freeny.
