HOT TIPS EXPLODING MARILYN MANIA COULD LEAD NEXT '50S REVIVAL

It's getting to be one big '50s frenzy out there. Diners,Fiestaware and twinset fashions are making it hard to walk the linebetween nostalgia and reality. Or maybe Miz Hot Tips is just havingtrouble walking in her Marilyn-inspired high-heeled mules.

Anyway, she, like a lot of women, is caught up in this Monroemania thing. Halter dresses, sexy sandals, red toenails and pin-curlwaves are showing up on Hollywood's best, from Madonna (again) toTori Spelling to Gail O'Grady.

In the new movie "Mulholland Falls," Melanie Griffith not onlyhas the 'do, but wears a peignoir, which Women's Wear Daily istouting for a fall comeback.

What with the star's 70th birthday coming up June 1 andtonight's HBO special "Norma Jean and Marilyn," starring Mira Sorvinoas the platinum sex goddess, we're bound to see other '50s fadsflourishing: saucer-shaped champagne glasses, dressing tables, capripants and chenille bathrobes.

It's the water: Beverly Hills now has its own water source -besides the swimming pools. Beginning at 9 a.m. Sunday at the weeklyBeverly Hills Farmers Market on North Canon Drive, you can buyBeverly Hills Water for a buck a bottle. For more information, call(310) 285-1048.

More Hollywood hype: They won't have any Marilyn Monroememorabilia, but a script signed by the "Friends" cast, a taperecorder with Tom Cruise's autograph, a tour of Madonna's house and asuit from Rod Stewart's closet are among the prizes to be auctionedJune 8 at the fourth annual KIIS and Unite concert starring Cher.The event benefits Cities in Schools, the largest stay-in-schoolprogram in the nation. Tickets are available through the radiostation and AM/PM stores. For a vicarious thrill, hop on theInternet at 6 p.m. at http://www.kiisfm.com where it'll be shownlive.

In burger heaven: Miz Hot Tips actually remembers when the firstMcDonald's came to Panorama City and burgers were 15 cents, so sheoohed and aahed over the little ceramic replica of the originalgolden arches restaurant offered by the Official McDonald'sCollectible Club for $19.97. To order the tiny McDonald's with thesign that says "over 1 million burgers sold," write to the club at9305 N. Milwaukee Ave., Niles, Ill. 60714-1380.

Just woof: Some dogs will eat anything, including shoes and golfclubs, but for those ultra-discriminating pets, Century Pet Care hasa new din-din to dish up. It's called Carnivore and is a dry foodmade with more protein and less preservative than ordinary dog food.Carnivore is vacuum-packed for freshness, takes up less space in thecupboard and looks more like meat than do other brands. It's $4.39for a 3-pound sack at most markets.

It's soooo L.A.: The city that spawned "Baywatch," "L.A. Law"and "Beverly Hills, 90210" fascinates the world. Just in case youhaven't learned all about your city, UCLA is offering a one-dayexamination of L.A.'s morality, materialism and ethnicity at 9 a.m.June 22. The class fee is $50, and the number to call is (310)825-2301.

Hot Tips appears every Saturday. If you have a hot tip on a newproduct or place, write to Barbara De Witt, Daily News FeaturesDepartment, P.O. Box 4200, Woodland Hills, Calif. 91365-4200.