Wall-E's body is chocolate box cake mix covered in homemade buttercream. Head, arms, neck and treads are RKT covered in MMF. The arms started to crack when inserting them into the treads but managed to hold together until the party the next day. For my nephew Will who turned 4 (hence the label on the front does not say "WALL-E" but "WILL-4"). First time working with RKT on a cake.