20 Unsexy Costume Ideas

Kristen Wiig's tiny-armed singer from SNL's "Lawrence Welk Show" skit is easy to re-create with an outdated bridesmaid dress, bald headcap, snaggletooth, and of course baby doll arms. (Group idea! Grab three more friends to round out the sister act.)

Modern Family's Claire was going for a costume that harks back to a more innocent time. Just add about two yards of fabric to this costume for a grade-school-appropriate Little Bo Peep outfit.

Just say "no" to a sexy gnome costume. All it takes for the nonslutty and hilarious version is red felt rolled into a cone shape and pinned into place, a blue sweater, black sweats, furry boots, and a Santa-like beard.

Source: Lisa Pearce

A past Ugly Betty Halloween episode provided an excellent costume idea for not attracting wieners: be one! (It's also double duty if you dress as Ugly Betty in a wiener costume.)

Heidi Klum and Seal always went over-the-top with their couples costumes, but that only made their unsexiness all the more terrifying (albeit impressive). It takes real talent to make the Adam and Eve costume concept not sexy.

It's a pun, it's Tina Fey, it's unsexy. Does it get any better?

While you have to appreciate the Canucks team pride from How I Met Your Mother's Robin Scherbatsky, a full hockey uniform (with helmet) isn't exactly sexy . . . except maybe to hard-core fellow fans.

Smart is sexy. Einstein, not so much.