Here are the things you will need:
- fabric (reclaimed is even better!)
- scrap fabric, preferably with a loose weave
- cotton cord (or ribbon, rick rack, or other cords for the tail)
- thread
- embroidery floss
- catnip
- polyfil
Source: http://www.craftster.org/forum/index.php?PHPSESSID=5862710baea60250730b3cd660963c2f&topic=283086.0#axzz2mHU9QDAI
