etsy is an online marketplace where designers can sell hand made items such as jewellery. you set up your own shop, and away you go! one designer, thelovelyteaspoon, sells a few different lego inspired silver rings, which look really cool! above is the 'primary combo lego ring', and below is the 'lego ring' with different combinations.
seeing these has made me want to a) start up a shop on etsy and b) make my own lego ring!
link to thelovelyteaspoon on etsy