Also on these boards
When my Grandma was moving out of her last apartment and in with my father, I found a ton of empty toilet paper and paper towel rolls shoved into (and behind) one of her drawers - and when I say a ton, I mean an entire garbage bag full - and of course I threw them out. Now seeing this I am a little bit remorseful. Don't tell grandma.
All you need is toilet paper rolls (or paper towel rolls might me more sanitary) and craft glue. Flatten the rolls, cut into bands (a toilet paper roll should give you about four circles). Pop them out a bit so that you have a flower petal shape, and glue together on a flat surface, in any pattern you desire!