I have a 1/16th Mini-Art Roman Legionary and Musketeer on stock, with the intention of doing a modernised Legionary at some point. The original intention was to do him 1960s (just using the Musketeer for trousered legs and convertible boots) and give him a radio, SMG etc... However 1/16th accesories are either hard to come by or expensive (I have picked up a few), an alternative would be to use ALL the Musketeer's gear to make him a 17th century Legionary....
I also have a couple of 28mm "Getchen the Sniper" figures plus another different one (can't recall the manufacturer) as a "boot donor", which should allow me to make a fairly decent Tank Girl at some point. However Getchen has a full head of hair, so to achieve this I'll have to become the first person to ever give Tank Girl a haircut with a Dremel, and if that doesn't scare you, then you really, really DON'T know Tank Girl......
