For lack of more creativity, I've really only been able to think up two possible screenames...

neon_heart (with the heart formed by the less than & 3 after it... dumb website wouldn't let me type it)
^^This is the sort of cutesy-er one, more like something the average teenage girl would have as their screename. However, it's also the title of a 70s punk rock song about a Paris Hilton-esque socialite who kills herself.

stripedsweater90
^^This is the slightly nerdier, and obviously funnier, one. Fans of Spongebob might remember him singing the Striped Sweater song. "The best time to wear a striped sweater, is all the time..." My friend and I have been joking about this song lately, so I know at least one person would find it funny.

Too bad redhoodedsweatshirt is too long.

Any advice?