Fostering kittens sounds like a bag full of fun, for real! I have thought about doing that, but then I end up getting animals foisted on me. There always seems to be a young cat or kittens showing up round here. I need to get the two latest additions in to be spayed, or else I might have more kittens around than necessary!
Hopefully the paper sack initiative yields cat craziness for your amusement lol!