These little Mr. Potato Head like pieces are designed to fit little pumpkins! Mix and match the face pieces and have fun!
Besides traditional face pieces, there are also pieces for a Minecraft Jack-o'-Lantern, Kitty Face, and Instructables Robot Face.
Pick and choose the pieces you want with the Tinkercad design: https://www.tinkercad.com/things/8kRuHiBH0Mz-mini-pumpkin-faces
Find more information on the design on Instructables: https://www.instructables.com/Jack-o-Lantern-Face-Pieces/