Don't mind me & my soapbox, I'll get down eventually. ;)
My senior year of college, Chris and I rode our bikes all over the place and never wore helmets. The last day of class, Chris got on his bike to ride to campus, the chain detached and threw Chris off his bike. In slow motion he fell and knocked the back of his head on the asphalt. It was a slow speed accident with pretty low impact, but Chris's head was hurting for days. NOT cool. I was worried he had a concussion, but thankfully he didn't.
After that, Chris took wearing a helmet seriously. It took me another 6 months before I unwillingly complied to buy a helmet and wear one - and I only agreed to wear one if it matched my bike. You think I would've taken wearing a helmet more seriously, because my brother (bicycle daredevil) has broken a helmet in half before from his crazy awesome bike tricks.
Long story short, the bike helmet I bought to match my cruiser doesn't match my fixie, the bike I ride most often. It's also seen better days. I felt like it was time for a facelift.
I used Krylon Fusion spray paint in yellow. Krylon's fusion brand is awesome. It's made to adhere to any smooth surface, especially plastic. It went on my helmet so easily & the finish looks beautiful. After I painted the helmet yellow, I made the decals for the sides to add a little more flair. This helmet is SO much hipper than it was before & matches my bike perfectly. I need to go on a ride soon!
If you're looking for some hip helmets to wear, try NutCase helmets (found via Kitsune Noir), they've got some rad designs. Stylishly protecting your head for $40-$50 isn't a bad deal, either.
Do you wear a helmet? What kind of helmet do you prefer?