These lamps are kind of shaped like sunflowers and uses solar energy to power themselves. It's great for your outdoor garden and can even be used indoors. It'll just collect whatever solar energy is available indoors to keep themselves lit.

A very unique and green idea. I like. (via Gizmodo)

I can't wait for these lamps to go on sale. Green and beautiful.

Another solar powered outdoor light. Requires no set up and has a really nice ring-like glow. This one has wall-mount and table-top options too.