Rainbows are all the rage again these days and they're a popular theme for birthday parties. If you're planning a party soon, check out Gabrielle's DIY rainbow balloon banner.

Gabrielle came up with this balloon banner for her daughter's first birthday. We love the impact this large piece has. Make this and you can dispense with all other decor. As you would suspect, in addition to balloons, string, your lungs, and some time, you can make your own balloon banner and in whatever color combinations you like. Go and check out Gabrielle's detailed instructions over at Design Mom.

(Image: Gabrielle Blair)