For the most part I crocheted everything the head, mouth, body and legs. I did knit the feet and I used felt for the eyes and ears. At first I was going to knit my own slinky but it frustrated the heck out of me because it never looked right. I ended up getting a slinky instead. To attach the slinky to his front and back I used the whipstitch (I believe it's called that) to help keep it in place. I also put wire in his legs to help him stand up and I put wire in his neck to keep it up.