LEGO tester smykkeserie - til voksne.

The jewellery is part of a trend towards "kidult" play-themed products, according to department store Selfridges, which is stocking the line.

The silver rings will sell for £50 and come with two interchangeable Lego bricks available in more than 15 colours.

A range of charms to accompany the rings will sell for between £15 and £20.

The Lego Group began in the workshop of Danish carpenter Ole Kirk Christiansen in 1932.

It began producing the plastic interlocking bricks - still a staple of the toy basket - in 1949.

Other "kidult" products expected to go on sale later this year include Play-Doh perfume and Lego nail varnish.

Selfridges spokeswoman Sally Scott said: "In a year of so much economic uncertainty and political change we think the country is ready to forget their troubles and have a play.

"In our research we found that Lego is one of the most tactile objects for people of all ages. You just can't resist picking it up and starting to have a play."

Lego spokesman Paal Smith-Meyer said: "We are excited to test launch this jewellery line with Selfridges. It is a line that celebrates individual expression in a playful way, using the Lego bricks that we all grew up with in a new way."