All Things Cupcake did a nice roundup of DIY cupcake stands. The photo above is the image we originally had in mind when we set out to find these directions.
To make the first one, you'll take cake dummies and cake boards, decorate them, and basically stick them on top of each other. You can read the complete how to at Cake Journal.
If you're wondering where to get cake dummies and boards (we were!), a quick search online turned them up on numerous baking sites, but we also found them both on Amazon.