London-based TMB Artmetal, makers of “provenance” items fashioned from actual bits of automotive, aeronautic, locomotive and maritime icons whose Spitfire sculpture we wrote about a few months back, has come out with limited edition cufflinks made from the Prince of Wales’ prized 1970 Aston Martin DB6 Volante. TMB has created 200 pairs of the links in two designs, formed from the original aluminum engine pistons which were removed when the Prince recently converted the car,  a 21st birthday present from the Queen, to run on biofuel.

Each design finished with 18ct gold comes in a limited edition of 100 pairs. One edition is an exact, miniature sculpture of the DB6 Volante, whilst the other replicates the car’s iconic wheel spinners – the quick-release fixing that secures the Aston’s wheels. Each pair comes accompanied by a certificate of authenticity and is priced at £995 or about $1,600, with all profits going to the royal’s youth charity, The Prince’s Trust. Charles has been on an eco-kick of late, and has also converted his Jaguars, Audi and Range Rovers to run on 100 per cent biodiesel.