Crayola Melt N Mold Crayons Unit/Refill Bundle Pour the melted wax into molds to create custom crayons; No two crayons are the same! Includes two Melt n Mold expansion packs Expansion Pack one makes twisty crayons with Neon Blast crayon colors to make 8 funky shapes Add a colorful twist to your Melt 'n Mold Factory! Mix, melt and mold the exclusive Twisted Rainbow crayon colors to make 8 spinning tops