Since its debut in 1960, the costume tweaks have been minor and only trusted to the most skilled hands. Roberto Cavalli, a mainstay designer on the red carpet known for his seductive gowns, cut the bikini line to dangerous heights when he refashioned the iconic costumes two years ago. He added some of his own signature features, such as Swarovski crystals, corsetry ribbon, a lower bustline than the bunny dip itself and leopard print. Voilá, the bunny was officially Vegas-ready for the Palm's Playboy Club.

HER NAME IS RIO

If it weren't for the singing, dancing and bottle juggling, the Rio's bevertainers could easily look as though they took a wrong turn on the way to the bedroom. Their uniforms look like they came straight out of a Victoria's Secret catalog. "We thought it would be appealing to guys," said Meg DeAgostini, wardrobe supervisor for Dick Foster Productions. According to DeAgostini, the design team's original concept emulated a little cocktail dress, but the result had the bevertainers "too covered." Taking a little more fabric off and adding lace provided the "feminine allure" they sought.

Bevertainer Jennifer Lynn couldn't be happier with the final design. "I loved them right away," she said. And surprisingly, the side lace sections covering the hips, she says, act as the saving grace of the costumes. "They accentuate the best on all the girls," she said.

RED HOT

Slip off the suntan-colored pantyhose and the high-limit cocktail uniforms at Red Rock Resort become typical club gear. That's just what the designers intended. "The whole theme of Red Rock was to be a little more chic, a little more hip, to get away from the bustier of Las Vegas," said Stacy Stagg, assistant general manager at Red Rock Resort.

When the sketching process began, Stagg and her team envisioned something found on the rack at Bebe. Comfort came in second on the priority list. The keyhole on the bustier top and slit on the skirt kept things interesting, but the overall uniform offers enough coverage for waitresses to feel at ease. "When they feel sexy and comfortable, they act sexy and comfortable," said Stagg. "And then we all win."

OUT OF THIS PLANET

The waitresses at Planet Hollywood's sports book lounge, The Infield, may don the universal cocktail attire color (black), but one feature sets their uniforms apart from the others: long sleeves. For designers of the "hot and sexy" lounge uniforms, however, covering a little skin meant making up for it elsewhere. Nothing but a push up bra and a bare midriff lie beneath the open jackets that recall classic roller skating gear.

Still, this number manages to exude a fun-loving quality, punctuated with a pair of boy shorts that make it easier for servers to get from the bar to your table. Add a pair of fishnets to the equation and you have a "cocktail" of seduction, sportiness, and glamour.

Contact fashion reporter Xazmin Garza at xgarza@reviewjournal.com or (702) 383-0477.