I always like finding new ways to reuse objects you already possess which is why I like these: This is a suitcase pet bed from vintagerenaissance’s etsy page. And a girl’s shirt dress from Dana’s blog Made.
Corvus tristis posted a tutorial on weaving cheap. They found old shirts from the thrift store and cut them into yarn. It is a really great idea if you don’t have a lot of money and you want to reuse old clothing.