My Daughter wanted to be an animal for Halloween a few years back and we decided on a Kangaroo costume. The body started out with a pair of brown pants and brown oversized sweatshirt.
I attached a offwhite toilet seat cover to the front of the shirt for the pocket. I flipped the bottom up to form the pocket. The stuffed kangaroo came from Kohls.
For the tail I cut out brown felt and stuffed it with batting. I attached it to the shirt (mainly because I want the pants to be able to be worn again after Halloween). For the ears I had a extra pair of bunny ears lying around. I covered them with fake brown fur.
It was a fun and easy Kangaroo costume.