TerraCycle and Partners Provide Upcycled Costume Ideas and Free Collection Programs for Halloween Trash Halloween is one of the best times of the year for creative people as they set out to make their own eye-catching costumes and bags. Halloween lovers can now create costumes out of used candy wrappers and other non-recyclable packaging commonly found this time of year, all thanks to TerraCycle’s do-it-yourself costume ideas. Then, after Halloween, families can send their candy wrappers back to TerraCycle (for free!) and earn money for a local charity or school.