Cup cozies for hot drinks comes to mind. I took my template off of a cardboard one from Starbucks. I use 2 pieces of fabric sandwiched with 1 layer of batting. I pinking sheer them all, sew around them and use Velcro to hold the 2 ends together. They are reversible and can fold flat for your purse or pocket!
Another item is yo-yos...for oh so many things!