Yarn (They came pre-packaged in the crate but it was quite a bit. How much yarn you use will affect the size of your pet)
Pipe Cleaners (1 per pet)
Construction Paper or Stickers for nose & feet
Wrap all of the yarn around this "device" (you can make it out of Popsicle sticks)
Then, twist a pipe cleaner around the middle as tight as you can. And then slide the yarn off the device.
Cut all of the loops to make your pet poofy. Then bend the pipe cleaners into ears.
Add eyes and a nose (and feet if desired)