A rare golden egg has sold for a whopping £31,000!
The Cadbury's Conundrum egg was originally made in the 1980s by the Queen's official jeweller - Garrard - as part of a big treasure hunt.
The chocolate company hid 12 golden engraved eggs around the UK, which could be found by solving clues hidden in a special book as part of a competition.
However, the competition had to be cut short because some people weren't happy that groups of treasure hunters were sneaking around digging up their gardens and fields!
A 13th egg, which was a bit bigger than the others, was also offered as a prize in a competition which was open only to shops, and not the public. How EGGstravagant!
Here are some other record-breaking items which have sold for incredible prices...
The record for the most expensive card to ever be sold at auction belongs to Charizard.
This first edition holographic shadowless Charizard card sold for a whopping $369,000 (around £262,000) in an auction in December 2020.
The card had been given a rating of 10 for its condition, meaning that is was flawless, with no marks.
Also of note is this ultra-rare Blastoise card, which sold for $360,000 (£264,000).
This Blastoise card is especially rare because it is one of only two to exist in the world, and it was printed before even the first edition cards.
It was created by the Wizards of the Coast company back in 1998 and was used to pitch to Nintendo for the cards to be printed in English ahead of Pokémon's launch in the rest of the world.
Other record-breaking Pokémon card sales include a special Pikachu Illustrator card which sold for around £183,000.
A rare version of Super Mario Bros 3 from 1990 was sold at auction last November for an astonishing $156,000 (£117,000) - the most ever paid for a video game!
The cartridge was still sealed and in near-perfect condition. What makes this copy even rarer is the 'Bros.' logo being aligned to the left rather than the right - which means it comes from an early production of the game.
The auctioneer, Heritage Auctions said copies of this game "with 'Bros. formatted to the left on the front of the box...are very rarely found in sealed condition, and many collectors have been on the lookout for years".
The previous record for a rare and sealed version of the 1985 game Super Mario Bros. sold in July 2020 for $114,000 (£90,000).
The world's most expensive work of art sold at auction is a 500-year-old painting of Christ believed to have been painted by Leonardo da Vinci.
The painting, which is known as Salvator Mundi (Saviour of the World), sold at Christie's in New York for a record $450m (£341m) in 2017.
A painting that had been hanging on a kitchen wall above a stove in an elderly woman's house for years sold for more than £20 million at auction.
It's a thirteenth century masterpiece - meaning it is probably more than 700 years old - by an Italian artist called Cimabue and it was found in the French woman's kitchen in 2019.
An auction house was asked to go through her home when she moved and discovered the lost painting, which is called 'The Mocking of Christ'.
A sculpture by US artist Jeff Koons sold for $91.1m (£71m), breaking the record for a piece of work by a living artist.
The 104cm (41in) tall steel cast of an inflatable rabbit was sold at Christie's auction house in New York.
The 'Lady Blunt' Stradivarius violin sold in an online auction for £9.8 million in 2011.
The violin is extremely rare, and is one of about 600 instruments made by Italian Antonio Stradivari still in existence.
Made in 1721, the violin was called 'Lady Blunt' after Lord Byron's granddaughter who first owned it.
All the money raised from the sale of the violin went to the Japan Earthquake and Tsunami Relief Fund.