McDonald's limited-edition Happy Meals selling for $480,000 online

McDonald's toys are selling for as much as US$300,000 (AU$480,000) on eBay after a new range of Happy Meal-inspired boxes for adults hit restaurants in the US.

The boxed meals were designed to "bring back a nostalgic experience" for Macca's fans and in addition to encouraging a childlike enthusiasm amongst grown-ups, they've sparked a bidding war.

The meals have been so popular across America they've completely sold out, and keen collectors are now heading online to try and bag themselves one of the original Macca's mascots; Grimace, Hamburgler and Birdie, alongside a new character, Cactus Buddy.

McDonald's Cactus Plant Flea Market Box and toys
The toys in the new "adult Happy Meals" are in high demand. Source: McDonald's

The toys are part of a partnership between McDonald's and American streetwear label Cactus Plant Flea Market, and cost just $US12.95 when you buy them as part of a Cactus Plant Flea Market Box.

The food options on offer include a Big Mac meal or a 10-piece Chicken McNugget meal, which are served with a toy in a limited-edition cardboard box.

The promotion created a frenzy among Macca's fans, who couldn't get their hands on the items fast enough. Likewise, a range of apparel released as part of the collaboration has sold out.

One eBay user has now listed three of the unopened toys for US$300,000.95 ($480,000). "WILL SELL FAST!!" the seller added. Someone else is asking US$25,000 (AU$40,000) for an unopened toy.

The sellers may be over-reaching though; previous listings show the most someone has recently paid for Happy Meal goodies is US$2,400 (AU$3,800) for 150 sealed toys.

There are no plans at this stage for an adult Happy Meal to come to Australia - although its popularity in the US has surely prompted Aussie executives to think about which local brands would be a good fit if they rolled out a similar promotion Down Under.

Do you have a story tip? Email:

You can also follow us on Facebook, Instagram, TikTok and Twitter and download the Yahoo News app from the App Store or Google Play.