There’s somebody who paid $1.8 million for one of the nearly 600 foals Secretariat fathered. Another paid $88,810 for one of the famous racehorse's victory blankets. Someone else paid $6,100 for his shoe nail.  

And a company once even offered to buy, mount and sell Secretariat's poop as memorabilia.

Horse racing legend Secretariat has become the Midas of the horse world — anything he touches turns to gold once framed and put up for auction. At this point, you might be asking, what remains of this horse to sell?

It turns out, a lot, including the most recent item offered at auction: a horseshoe from Secretariat's victory in the 1973 Kentucky Derby, where his final time of 1:59:40 broke a track record that has gone untouched, making him the fastest horse in history — even almost five decades later.

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And this horseshoe could break a world record for the most a horseshoe has ever sold, said Leonard Lusky, president of Secretariat.com. He also manages affairs for the family of Penny Chenery, Secretariat's owner. They are selling the piece.

"It's a rare piece in history," he said.

Bids for the horseshoe started out at $10,000 and have already climbed up to $19,488 as of Wednesday morning. The auction is being hosted on memorabilia website Lelands.

Secretariat's other horseshoes have sold for around $30,000 in the last few years, Lusky said. The family owns more horseshoes that may go to auction at some point, but they do not plan on auctioning any more from the 1973 Derby.

The auction ends Aug. 17 but the bidders who submit before it closes can keep betting among themselves after that, Lusky said, thus potentially raising the final price tag.

He expects that a few bids might come from within a network of known Secretariat collectors but that the rare horseshoe could also lure sports enthusiasts beyond the horse-obsessed.

Other pieces of Kentucky memorabilia have also gone up for sale recently, such as one of Colonel Sanders' famous white suits. Those suits have sold for between $5,000 and $21,000 in the past.

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