HERE TO 'MUSE YOU Weinstein High society met low culture last night in Manhattan at Broadway producer Marty Richards's annual holiday party. Photographer Bruce Weber, choreographer Rob Marshall, socialite/songwriter Denise Rich, comedy doyenne Caroline Hirsch, and actor Ben Gazzara were among those who turned up at Richards's Sutton Place apartment bearing, per instructions, gag gifts of no more than $20 in value, to be distributed randomly to other guests. Offerings included a whoopee cushion, a Clapper, and a battery-powered figurine of a dog humping a tree. "Some of them were pretty distasteful," says Michael Milton, an associate producer at Richards's company, The Producer Circle. "Somebody used a bar of soap and put what appeared to be a piece of their pubic hair on it, and then wrapped it back up and gave that."