Nothing says "summer" quite like flip flops. Everyone seems to love flip flops and they come in such happy, summery colors.
So I made a wreath out of flip flops - super easy to do and super inexpensive. Buy five pair of flip flops - I bought size 7 - and a straw wreath. Hot glue all the rights or all the lefts onto the wreath form. If you have trouble getting the flip flops to actually stick, you might have to use a little fishing line to kind of tie the flip flops to the wreath.
Then adorn the flip flops however you like, with ribbon, beads, whatever floats your boat. I've made several of these wreaths for my sisters and friends. Too cute.