An avatar and Catwoman walk into a bar...

It's a bird, it's a plane, it's Super T!

We never thought we'd see the day when Catwoman would be helping Snooki into her dress.

What better way to get into the Christmas spirit than by swapping clothes with the host of your holiday party?

OK, it's not exactly a "costume," but Lisa Vanderpump's ski outfit could easily transition into some sort of Bond Girl outfit pretty easily.

Giggy showcases his Hawaiian side.

Gretchen gets her Pussycat Doll on in Vegas.

Just because you're dressed in full '80s regalia does not mean that you aren't ready to rumble.

You might as well face it -- Housewives are addicted to loving '80s costumes.

You didn't think it was possible, but Bethenny, the Skinnygirl herself, can go incognito.

OK, Jeff wasn't exactly dressing up for Halloween, but how can you not appreciate a man who enjoys a good burglar's mask prank.

Figures that someone who works in the funeral business wouldn't mind going a little bit gothic in the Halloween department.

Gail as Zoila goes hunting for treats as Chris March (dressed as Lisa Vanderpump) and Andy Cohen as Giggy look on.

Andy is flanked by two pretty good Andy-alikes.

Even without the bottom part of Sonja's costume, this party truly played host to some of the best outfits in Housewives history. Though we'll always regret we didn't see LuAnn as "Grace Jones."

See more photos from the shindig here.

In better times, Kim and Nene wigged out, in more ways than one.

Hmm, that wig of Jill's looks like it could be related to Sonja's powdered topper.

Teresa and Dina are really lady(bugs).

Did you think she was going to wear a jersey and baseball pants?

The RHONY ladies donned white dresses -- this time with Jill's approval.

Because sometimes all you need to bury a feud is a few good flapper costumes.

If you're going to toilet paper a house, you should go stealth.

The tables have turned ladies. And now Giggy is one of your own (Ramona). See even more snapshots of a dressed up Giggster here.

A couple of wigs and a touch of tequila might just equal "naked wasted."