For this homemade Oscar the Grouch child costume, we used a fluffy green scarf (it was very cheap scarf we got at the dollar store) and pinned it along a green long sleeved shirt and green jump suit. We used foil around a sonotube and foiled a plastic lid to cover Oscar’s garbage can. Then brown and green makeup. It was like a tube scarf. This homemade Oscar the Grouch child costume is great for little guys.