Squishmallow and artist

Hello! I'm a little artist who basically makes mushrooms out of polymer clay. I've recently been drawing. First mushrooms and now I'm making squishmallows... but am I allowed to sell my drawings? As pins, for example? Does anyone know Squishmallow's position on this subject? Thanks for your answers!

Hello! I'm a little artist who basically makes mushrooms out of polymer clay. I've recently been drawing. First mushrooms and now I'm making squishmallows... but am I allowed to sell my drawings? As pins, for example? Does anyone know Squishmallow's position on this subject? Thanks for your answers!