John Lennon's rotten tooth ended up selling for $31,200 at auction today.

A rotten tooth John Lennon had removed in the '60s hits the auction block next week. The reserve price has been set at $16,000. NBC New York reports:

The interest in late screen legend Elizabeth Taylor's sparkling hoard of diamonds, rubies, and every other precious stone known to man was renewed today when Christie's announced it would be selling all 300 items (estimated to be worth $30 million) in December. Here are some of the highlights, so you can pick out which of the pieces you'd like to bid on.

At this weekend's Antiques Roadshow stop in Tulsa, Oklahoma, a man walked in with a set of five Chinese cups carved from rhinoceros horns that he's had since the 70s. An appraiser for the show, Lark Mason told local news station KTUL, "As each one came out of the box my jaw started to drop a little more and that of at my colleagues eyes and their jaws dropped as well."

A Spanish memorabilia collector named Mikel Barsa is trying to get $500,000 at auction for what he claims is an 8-mm Marilyn Monroe sex tape, shot when she was "an underage actress." It's six and a half minutes long, and Barsa told the AP that it's the exact same as a 16-mm version that surfaced in the 90s.

Was everyone at Google stoned when the company was placing bids on a collection of Nortel Networks patents that it could've really used? Because here are three of their bids: $1,902,160,540; $2,614,972,128; $3,141,592,653. Yes—that last one is Pi billion dollars.

At an auction of actress Debbie Reynolds' collection of old Hollywood costumes this weekend, someone purchased the famous Marilyn Monroe "subway dress" from the movie The Seven Year Itch for $4.6 million, which was well above the pre-sale estimate of $1-$2 million. In fact, all the clothes sold for prices well above what was predicted.

Ever dream of slurping down fettuccine across the table from the most wanted man in the world? You can now bid on lunch with Julian Assange.

There have been several Bernie Madoff auctions over the last couple of years, but one over the weekend in Florida was perhaps the creepiest. Items from Madoff's Palm Beach estate included leather chairs, books and a Rolex that brought in around $400,000. Someone even spent $200 on 14 pairs of Madoff's boxer shorts.

Attention, discerning auctiongoers! The head of St. Vitalis of Assisi — the patron saint of genital disease — is up for auction in Ireland this coming Sunday. Obama must be so bummed he just left!

You've seen the internet meme that Princess Beatrice wore on her head so people would notice her at the Royal Wedding, right? Of course you have, because the internet won't shut up about it! Well, she sold it on eBay yesterday for for two charities — $131,341.47 will go to Unicef and Children in Crisis.

Planning on attending the spring art auctions this week? You might want to bring a spare suitcase-full-of-cash or two: At least a dozen pieces are priced in the $20 million range, including works by Picasso, Monet (pronounced Mo-neyyy), and Maurice de Vlaminck (he was a Fauve). But how can a poor struggling artist like yourself get that kind of dough?

Some guy from New Jersey is auctioning off a New York phone number with a "coveted" 212 area code on eBay with a Buy It Now price of $1 million. Who on earth is terrible enough to pay that? No one, hopefully. But "Carmen" is giving it a shot! He explained how people's insecurities will make him rich to the Daily News:

Back in January, Iranian President Mahmoud Ahmadinejad's badass 1977 Peugeot 504 went up on the auction block to benefit disabled people in Tehran. Well, it sold! For $2.5 million. Who was the highest bidder? According to AFP:

When Justin Bieber got his groundbreaking hair cut, he put a little lock of it in a plastic box and gave it to Ellen. Now she's auctioning it off on her eBay page, with all the proceeds going to some animal welfare charity. The auction has been live for a little under 12 hours, and already it's up to $6,700! Jesus.

Whoever buys "the identity of 'Banksy'" on Ebay for $25,000: send us a copy.

A giant bluefin tuna was sold to wholesalers in Tokyo for a record $396,000. Want to know what it tastes like? Try one of the "up-market" sushi restaurants it'll be sold to. (Spoiler alert! It tastes like fish.)

Alas! A life-size wax figure of Patrick Swayze as his Road House character Dalton ("sports his famous flowing 1980s hair style... shoes not included") has been sold at auction, and you did not win. You will never find happiness now!

The coffin that once held JFK's assassin Lee Harvey Oswald—or did it?—sold at auction for $87,469.

Hedge fund mogul and art hoarder Adam Sender dropped $422,500 at auction on the handwritten lyrics to Bob Dylan's "Times They Are a-Changing," more than $100K over the estimate. He still can't buy back his youth. [Image via Getty]