( CNN ) -- If you sell it , they will come . Prices are expected to grow for Michael Jackson autographs like the one he gave this young fan in 2002 . That 's the hope at least for many offering Michael Jackson related merchandise and memorabilia , including autographed items and domain names , in the wake of his surprising death . Almost 20,000 items were up for sale after his death on the popular auction site eBay , where collectors could snap up everything from the rare to the ridiculous . Among the many T-shirts , record albums , DVDs and posters , there were also magazines about Jackson , dolls and copies of newspapers announcing his death . There were Michael Jackson gloves ( sparkly , of course ) , masks , wigs , sunglasses and fedora hats . Anyone in the mood for some senior soda could try and win an auction for an unopened six-pack of Pepsi from the 1984 Jacksons world tour . For those seeking to establish Web sites , domain names were available including `` ILoveYouMichael.com , '' which was selling for the `` buy it now '' price of $ 5,000 . Officials at eBay said that compared with the daily average of the week prior , Thursday 's gross merchandise volume for Jackson memorabilia increased by 275 percent and sold items increased by 210 percent . New listings were up 61 percent , while the average selling price of items had increased by 31 percent . Online merchant CafePress also offered a variety of items , including mugs , `` R.I.P . Michael Jackson '' magnets and dozens of T-shirt designs , including one screened with a drawing of tennis legend Billie Jean King and the words `` not my lover . '' Some of the hottest items may turn out to be the ones bearing Jackson 's signature . On eBay , bids for what the buyer claimed was a signed Michael Jackson guitar had reached almost $ 1,300 by Friday afternoon . Jerry Ohlinger , owner of Jerry Ohlinger 's Movie Material Store in New York , predicted that although Jackson was generous in giving autographs , the price for a legitimate autograph probably will at least double from the $ 150 to $ 300 range it was prior to his death . `` He would sign autographs whenever he appeared in person , '' Ohlinger said . `` For instance , he visited our store at least three times , and he signed autographs for all of the employees . '' As a comparison , Ohlinger said , an autograph for the late actress Marilyn Monroe , who also was known to sign a great deal during her lifetime , sells for about $ 5,000 because of great demand . As of Friday , items purported to be autographed photos of Jackson were ranging in price from just over $ 5 to several thousand dollars . There is no way to predict whether there will be a sudden influx in demand for Michael Jackson memorabilia and merchandise , Ohlinger said . All of the hoopla would probably tickle the pop icon , who Ohlinger said was himself a fan of star items . Whenever Jackson would visit Ohlinger 's Manhattan store , he would shop for vintage photos of some of the legendary ladies of cinema , including his very dear friend Elizabeth Taylor , Ohlinger recalled .
NEW : Sold Jackson items on eBay increase 31 percent compared to Thursday . Plenty of Michael Jackson merchandise goes on sale . Online auction site eBay boasts thousands of items from T-shirts to soda . Manhattan expert predicts Sold Jackson autograph to at least double in price .