I got a pair from pegatinas_tqs on eBay. Based in Spain. The ones advertised are the reverse of what you want (they’re black with silver shadowing) but in the description he writes,
[/size] ”Measure on pict, if you want another size, send a message
[/size]Make in 2 colours, 3M 50 Series
[/size]You can replace colors that you like, send a message”