Nick
I have clear lenses all round on the Aero with Cree LED's in them.They are clear to look at unlit but flash a deep orange.

The only snag is you will need either an LED flasher relay or piggy back some resistors on each unit otherwise they will flash too quickly - and upset your MOT man.... swear

James

Aero8 , Series 1 - Boston Green
RR Evoque P300E Autobiography
Smart Brabus Convertible
Monkey Z125