Additional links
Part description on:
Tile, Round 2 x 2 with Bottom Stud Holder with Globlin Face with Large Teeth Pattern
Bricklink ID:14769pb088
Weight:0.330 g

Sets with this part (from Bricklink)
  Part color Red

 Set nameRelease yearQuantity
271607271607 Firecracker Catapult20162
7031770317 The Fortrex20162
7032170321 General Magmar’s Siege Machine of Doom20162