More than two million of these were issued for the Games, meaning there should be plenty in circulation. They’re desirable because they feature four subtly different designs denoting Northern Ireland, Scotland, Wales and England.

The Irish edition may fetch up to £72 on eBay, while the England version is valued at around £36.

Other coins of note that could make you a tidy profit include the First World War Navy £2 (2015), The Great Fire of London £2 (2016) and the Shakespeare Comedy and Tragedy £2 (2016). All of these will bring in around £15 a go if you pitch it right online.

As well as eBay, you could consider selling your rare £2 to specialist coin collectors in your area.

Take a look at the diagram below, to see if you’ve hit the jackpot with any of your piggy bank debris. Then check here to match the coins with their names and scarcity index (compiled from mintage, collecting and swap data).

Hear that? It’s the sweet sound of coins rolling their way back to you...

Hurrah! Make money from nothing by trading in these rare £2 coins