Featuring: Scholastic Media and Trick or Treat Studios are proud to present Goosebumps Sloppy the Dummy Mask. This Sloppy mask is highly detailed and sculpted to perfection. Sculpted by Mark Anthony. Pick up Sloppy the Dummy Mask for Halloween and give all your friends goosebumps. us make sure you dont say the magic words Karroo Marri Donna Loma Malone Karana or your Halloween may turn into true horror! Includes: (1) Mask. 2017 Scholastic Media.