Former child star Gary Coleman, 32, is turning to a website (at webathon.ugo.com) to auction off some personal items and raise money for himself. The onetime “Diff’rent Strokes” star was said to have earned $18 million during his career — only, according to a well-publicized court fight, to have his parents squander the fortune. He declared bankruptcy last August. He is now set to sell off his spatula, sofa, purple bowling ball and size 4 1/2 bowling shoes, among other personal effects. Special items prepared for the Nov. 28 sale include $10 Coleman votive candles and a commemorative plate showing Coleman with Nancy Reagan.