Jason Sadler, 30, of Jacksonville said he is auctioning the rights to companies online and will adopt the winning company's moniker as his last name for all of 2013, CNN Money reported Monday.
Sadler said he wants to raise money for his company, IWearYourShirt, which allows companies to buy advertising space on his torso for up to a week.
The auction began Nov. 1 and ends Wednesday. Sadler said he had 19 bids in the first 24 hours of the auction.
The current high bidder, headphone company JLabAudio, is promising $34,500 for the naming rights.
"Sadler presented a unique opportunity to us that we felt could also generate a lot of buzz for our brand," JLabAudio General Manager Win Cramer said.