What says "fun" more than polka dots? They are cute, peppy, and classic all at the same time. Picture a red and white polka fifties style skirt, a pink and black polka dot halter dress, or a scarf in any color combination at all. Whether you are a glamour girl or a prepster, there is a dotted piece for you.
One of my favorite polka dot pieces is my black and white laptop bag. It's a little more fun than the typical black affair, and it was under $20 from Target.
I'm also a fan of Target's polka dot rainboots, which come in lots of color combinations. These would be an excellent addition to your wardrobe if you live in a rainy area.
I also really like polka dot dresses, skirts, tops, etc. One of my most versatile pieces is a black and white dotted skirt - its knee length and fluttery, and goes with everything from a black turtleneck to a turquoise jacket.
If you don't want to go for a entire dotted ensemble, try accessories. Maybe a lime green tote with pink dots if you're the preppy type, or a fuschia and black shoe for more of a vampy look. Or perhaps you want to go classic, so get a black and white polka scarf, tie it jauntily around your neck, and pretend you're at a cafe on the Champs de Elysee.
Here's a cute pair of wedges by Brian Atwood and a fun umbrella by Moschino. By the way, an umbrella is an excellent way to try out a pattern or color you're not sure about committing to in clothing form.