SINGAPORE - The upcoming McDonald's collaboration with Nanoblock, a type of construction toy, goes on sale in the fast food giant's restaurants on Feb 29, but people are already selling the toys here online.

The McDonald's Food Icons x nanoblock series comprises toy versions of french fries, a cold cup, an apple pie, a McFlurry, a Big Mac and a McCafe cup.

They go on sale with meal purchases at the fast food chain from next week, with a different one offered each week, or all together in a collector's kit that also includes a restaurant model from next Monday (Feb 22).

The toys will go for $4 a piece with an extra value meal purchase at McDonald's, or for $29 for the collector's set, also with a meal purchase.

But according to AsiaOne, people in Singapore are already hawking the toys on apps like Trezo and Carousell. Some are selling them for more than they will cost at McDonald's. The promotion has already run in Malaysia and Hong Kong. There were long queues for it in Malaysia and apparently the toys sold out within hours in Hong Kong.

One Trezo user, saying her toys are "authentic from Malaysia", is selling them for $6 a piece.

A search on Carousell shows users selling the toys for as much as $88 for the entire set. One user is selling individual pieces for between $10 and $12. Some listings have been up for months.

On eBay, users from countries like Malaysia, Hong Kong and the United States are flogging the collectables for as much as $182.

Fans in Singapore who were willing to queue got a chance to buy some of the toys at a preview event on Wednesday (Feb 17) at Bugis Junction. Some got up early to wait in line at 7am to buy a McDonald's Nanoblock toy ahead of the full release next week.