Manic Panic Electric Banana Yellow Hair Colour Gel
Costume: Smurfette
A neon colour like the Manic Panic Electric Banana Yellow Hair Colour Gel ($10) will help you achieve the look of just about any blond cartoon character. This one doubles as a colour and a styling gel, and how intense the colour appears is up to you and how you choose to apply it. You can expect it to wash out easily with just one shampoo.