The Shohei Ohtani bobblehead doll, which features the Japanese star holding his dog Dekopin, was free when the Dodgers handed it out to fans with tickets — and to those persistent enough to wait in hours-long lines outside Dodger Stadium for Wednesday night’s game.

If you want to get one, you should be prepared to pay a lot of money.

The coveted bobblehead dolls are currently selling for hundreds of dollars online, just two days after the Dodgers’ giveaway.

“As a dealer, I get a little nervous when I see how much this stuff is going to cost,” said Matt Federgreen, owner of Beverly Hills Card Shop, who has been dealing in sports collectibles since 1983.

A total of 40,000 bobbleheads were given away for the game against the Baltimore Orioles, but more than 53,000 tickets were sold. Unless fans arrived at the stadium early, they were out of luck.

Fans did get to see Ohtani’s dog, nicknamed “Decoy,” throw out the first pitch.

Read more: Watch Shohei Ohtani’s dog, Decoy, throw out the first pitch at Dodger Stadium

According to listings and bidding on eBay and Facebook Marketplace, people are now paying between $150 and over $1,500 to get their hands on this coveted collectible.

The Dodgers also gave away a limited edition gold Ohtani bobblehead, which sells for hundreds of dollars more.

The gold-colored Ohtani was advertised on eBay with a risqué asking price of $69,420, but no bids had been placed as of Friday afternoon.

Ohtani’s international popularity has caused prices for some of his memorabilia to skyrocket, with some of the gold-colored bobbleheads selling online for $1,500 or more.

“Everything Ohtani is coming out with now is profitable and people are going to play on that,” Federgreen said.

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An eBay listing listed the Ohtani and Decoy bobblehead for $169.50 as of Friday afternoon, while another listing was asking $227.77. One seller has sold more than 30 dolls.

Another post on Facebook’s Marketplace asked for $150 for the doll, but noted that the box had already been opened.

However, advertisements for the golden doll, or both, have been found fetching over $1,000.

One person in Anaheim asked for $1,600 for the gold doll in a Facebook post. Another asked for $1,000 for both dolls, adding a photo of the dolls with Dodger Stadium in the background to make it seem more authentic.

The Times contacted several people who were selling the dolls online, but did not immediately receive a response from the sellers.

Some posts asked for more than $2,000, but as Federgreen noted, there were no signs that anyone had offered or paid that price.

Read more: Shohei Ohtani bobblehead night for two? Prices start at $300

The Dodgers gave away an Ohtani bobblehead in May, five months after he signed a 10-year, $500 million contract. Fans also lined up for more than three hours before that game to make sure they got one.

According to Federgreen, Ohtani is one of the reasons why his company has been performing so well lately.

He said trading cards and memorabilia have become increasingly popular in recent years, and stars like Ohtani have contributed to that.

On Thursday, Topps, owned by Fanatics Collectibles, announced it has entered into an exclusive trading card deal with Ohtani, including cards, autographs and game memorabilia.

No details have been released about the value of the deal, with Fanatics saying it was a long-term agreement.

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Federgreen understands the demand for the Ohtani doll, but warns people willing to pay a few hundred dollars for one.

“There’s a lot of profit to be made,” he said. “I don’t get involved in things that might have short-term value.”

He notes that some collectibles that suddenly rise in price often fall in price again quickly.

“It’s a cute bobblehead,” he said. “But you can buy something vintage for the same amount of money that will hold its value.”

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This story originally appeared in the Los Angeles Times.