- Ikkez sells cute ears, deedly-boppers, and treads at his Etsy site
- Redwish's review of tread by Ikkez (original post)
- Dauler sells ear, horns, treads, stickers, and other fanciful mods, and 3D STL's at 3D Designs by Dauler and Etsy
- Dauler sells treads at 3D Designs by Dauler
- Cat ears for Vector, as 3D files by "misconduct"