This is a fun and fast project! I used Nightlights yarn and my kids love to play with it in the dark at bed time, but you can use any yarn! Fabric should be dense, and you can change yarn and hook size to alter the finished size. You’ll be amazed how well this works! I’m, um, not very sporty, myself, but I can throw this thing at least 30 feet! I love it. You will, too. :)