Being a hardcore fan of a famous celeb isn't something to be embarrassed about, but when you're shelling out hundreds or thousands of dollars for something extracted from their body or something as ridiculous as a bag of their breath, you've got to think twice about your choices.
Here are 13 of the most bizarre personal celebrity items that sold for a lot of money.
Seriously, they should have been thrown out.
1. William Shatner’s kidney stone
The man responsible for the iconic portrayal of James T. Kirk in the Star Trek franchise is literally loved to pieces.
Even the things that ail him cause people to go into a frenzy.
To be fair, Shatner sold his kidney stone for a good cause. He wanted to raise money for Habitat for Humanity, which builds houses for those in need.
He was initially offered by GoldenPalace $15,000 for the stone, but he refused. After a little more bartering, Shatner sold the crystalline mineral for a whopping $25,000.
“This takes organ donors to a new height, to a new low, maybe. How much is a piece of me worth?” he said in a telephone interview with Today.
2. Michael Jackson's soiled underwear
The "Billie Jean" singer is not a real king, but he may forever be remembered as one.
His 28 inch-waist Calvin Klein briefs were up for grabs on eBay after they were confiscated for evidence in 2003.
The underpants were sold for $1 million. That's insane! What in the world would someone do with dirty boxer shorts?
3. Scarlett Johansson's dirty tissue
The Avengers actress's sneeze raked in $5,300 for USA Harvest, a charity organization that picks up food for the needy.
The soiled tissue appeared on The Tonight Show with Jay Leno, so you know it's the real deal.
83 bids were placed until an anonymous bidder snagged the tissue, and surprise, surprise, the person who bought it chose to remain anonymous.
The last thing you want to be known for is the man or woman who bought Scarlett Johansson's sneeze debris.
4. Angelina Jolie and Brad Pitt's bag of air
It's nice to know that some people are willing to give people money for air.
But it's not "normal air" that encourage people to pull out their wallets, it's the molecules that have been inhaled and exhaled by celebrities.
While this former couple was walking on the red carpet, someone apparently "caught" their breath in a jar.
These air molecules sold on eBay for more than $500.
5. Justin Timberlake's half-eaten French toast
I don't know how it's possible to resist eating a delicious piece of French toast, but at least it didn't go to waste.
During an interview with a New York radio station in 2006, Timberlake and his NSYNC crew were given French toast to eat.
Timberlake's breakfast scraps were put on eBay right after the show, where one fan bought the bitten toast for more than $3,000.
I don't know what one can do with half-eaten French toast, but I wish that buyer all the best.
6. Britney Spears's chewed bubblegum
The "Baby One More Time" singer loves gum, but who doesn't?
Even an unverified piece of gum, possibly watermelon flavor since it's Spears's favorite, sold for a whopping $14,000 in 2004.
Apparently the seller competed with himself in order to push the price up. Other pieces of the singer's gum sold for a few dollars in that same year.
It could have been a scam, but the fact that someone was willing to pay thousands for a used piece of gum is mindblowing.
7. Elvis Presley's hair
The King of Rock 'n' Roll probably couldn't donate his hair to charity even if he wanted to.
There were tons of fans who collected Elvis memorabilia, which meant that a lot of people had huge sums of cash to exchange for personal items tied to the famous celebrity.
In 2009, a clump of Presley's hair believed to have been from the time he joined the Army in 1958 sold for $15,000 at an auction house.
Another lock of his hair sold for more than $1,300 to an online auction house a few years later.
These locks of hair better be DNA tested if someone is shelling out money like that.
8. Albert Einstein's letter challenging the idea of God
Opinions do matter, but only when it comes from someone as famous and revered as Albert Einstein.
The theoretical physicist wrote a letter to the philosopher Eric Gutkind in 1954, in which he described the Bible as "pretty childish."
This letter challenging the idea of God sold for a staggering $404,000 at an auction in London.
Einstein's entire collection of love letters sold for only $40,000 more than that single letter.
9. J.D Salinger's toilet
The Catcher in the Rye author's "personally owned and used" toilet was listed on eBay for $1 million in 2010.
The white, porcelain toilet was removed during renovations at Salinger's former home.
According to the ad, the toilet is "uncleaned and in its original condition."
And if that didn't make you want to write out a check, the seller added, "Who knows how many of [his] stories were thought up and written while Salinger sat on this throne!"
10. Lady Gaga's fake nail
The pop singer is idolized among her fans for her unique style.
I get it, she's different, and a lot of people like that. But in what in the world would possess someone to spend $12,000 on her signature "monster claw."
The black fake nail with gold glitter and beads fell off her finger after her performance at the Aviva Stadium, where one lucky seller was able to make a fortune off of it.
"I noticed an object on the floor of the stage, which at first I thought was a guitar plectrum," the crew member said, according to the auction listing. "When I picked it up, I saw it was an acrylic nail."
11. Gary Coleman’s sweatpants
After the '80s sitcom Diff'rent Strokes ended, Coleman struggled to find work and lived a relatively poor life.
That being said, one of his signed navy blue XL Gap Kids sweatpants was listed on eBay to be bid on.
The bidding war began and the sweatpants were about to be sold for $400,000, but the bidder backed out and Jimmy Kimmel bought the pants for the second highest bid, which was $500.
12. Britney Spears's pregnancy test
The pop singer's chewing gum wasn't the only thing that fans wanted to get their hands on. Even a used pregnancy test was able to rake in a lot of money.
But in this case the money was donated to charity.
A Canadian radio station who had ties with the Los Angeles hotel where Britney and her then-husband Kevin Federline stayed at obtained the positive test results and sold it to GoldenPalace for $5,000.
Oops? People were going to find out anyway.
13. John Lennon's tooth
I don't now what's crazier, that the "Imagine" singer's tooth was sold for $31,200 or that he gave his extracted tooth to his housekeeper as a gift?
A Canadian dentist bought the molar, which was reportedly discolored and had a cavity.
“For the cavity to be this large he probably wasn't seeing a dentist that regularly,” the dentist said.
Would you ever buy any of these items?
If you liked this article, check out 11 celebrities who have the strangest habits.