Go Hard or Go Home.
My homies/former roomies and I love to throw theme parties. We threw a Cholo party, as documented in the Tuesday, September 19, 2006 post. That was a wild success. Why? Because everybody has khakis/Dickies, a flannel shirt, eyeliner, and a Latino community nearby to buy
Feliz Cumpleanos banners and Virgin Mary bandannas.

We threw an Ugly Christmas Sweater party, complete with gaudy sequins, reindeer trappings, and only the best from Ross/Goodwill/Burlington Coat Factory.

But for
some reason every time we attempted at a 90s theme party, it was a complete bust. My friends and I ended up being the only ones in costume, having to explain ourselves constantly to the other people who either a.) chickened-out completely b.) said they had "nothing to wear", but were really too lazy or c.) were totally in the dark about the whole situation. For some reason, the 90s is a particularly hard era to dress for, and not too flattering. It's a weird juxtaposition, really, since most people revert to outlandish late 80s garb or are too shy to bring out the crocheted vests, lumberjack flannel, newsboy caps, bodysuits, and STUSSY shirts. There seemed to be a cleansing of the closets in the end of that decade that flushed all the local Buffalo Exchanges and Crossroads with oversized jeans and military-style initial belt buckles.
Our first attempt at a 90s theme...
...and our LAST! So here are my tips for a successful theme party, derived from trial and error.
1. Costume parties are better left to house parties The most successful theme parties were conducted by household occupants in which all or a majority of the roomates were involved. It is much more fun to get everyone in on the act when the household is in consensus, thus easier to enforce mandatory dress status. One of the rooms can be blocked off for dressing purposes, and when there are more people in on the fun, wardrobe can be borrowed, exchanged, and easily consulted with.
When a theme party is thrown in a club or at a third party's house whose involvement is questionable, people will become easily embarrassed and chicken out. Or they'd rather dress up and impress the opposite gender than go all out with the costume. And you, like myself this past weekend, will be left all by your lonely in a time warp.
2. Make sure to pick your theme well That means, make sure it's inexpensive, with costumes that can easily be bought in a thrift store, or found deep in the bowels of your closet. (Unless you're dressing for the Pride Parade or Halloween in the Castro, which only the Queens can appreciate such garishness.)
Kae and Kirs's Hyphy Harajuku Party 
Also, pick a PC-friendly theme. One where you won't get beat up. For the love of G-O-D, do not dress up like a military man and an Asian whore. Or a Ku Klux Klan member. Or blackface. Or anything remotely racially-insensitive.
As for our Cholo theme, we made sure everybody dressed up as soon as they got into our house, since we did live in a community that was high in gang violence, and removed their costume upon their departure. It is okay to celebrate a culture while still having the utmost respect!
3. Make sure your surroundings reflect your theme in the form of activities, food and musical choice For our Cholo party, we served taquitos, played "Pin the Tail on the
Burro " and set up an oldies playlist on the iPod. For the 90s party, we had plenty of Kriss Kross, Lisa Lisa and the Cult Jam, NWA, and TLC to choose from. For our Ugly Sweater X-mas party, we made origami ornaments, decorated gingerbread houses and stockings, and baked cookies. (Of course, we were blunted and drunk off our asses, which made our wholesome activities adult-friendly) But feel free to nix the festive holiday music for your Christmas party if you work retail and can't stand the month-and-a-half of obnoxious muzak pumping through the store speakers. I know we did. But a little Donny Hathaway never hurt nobody.
4. RIDE or DIE for the cause! The only way any of this will turn out a success is if you have a good handful of friends just as enthusiastic as you, and you are willing to risk the fact that you might show up the only ones in costume. And at that point, you will have no choice but to stay in character, to shame the rest of the partygoers into participation.
Josh got stuck with the penalty sweater! Better yet, make sure you have obnoxious penalty costumes for the people that show up trying to be cute. And if it's your house, don't let the mothafuckas in if they ain't in spirit. They're probably just trying to who-ride on the free food, and we ain't havin' that.
HAVE FUN!