I did these all today so now all the family cats (not all mine mind you) will have a catnip mouse to play with. The biggest, which looks fuzzy (cause it is) is done in wool and angora. The other 3 are different sizes cause I used different sized yarn and needles. Aren't they cute? They're for Toby, Marmalade, Cody and Mickey. Takes 30 minutes to make one. I got the pattern from wendyknits.com.