Wow! All the above items are PetSugar readers' great suggestions for my D.I.Y. challenge! From wrapping yarn around a satchel of catnip to adding jingle bells to existing toys, you certainly know how to please your kitties.
If your cats love found objects, try other recommendations such as tying 10 hair ties (with no metal) to a piece of yarn or cutting used gift bows into poofs as impromptu creations. As with any toy, monitor your pets when they play, paying close attention for small, broken, or loose parts. Happy crafting!