In order of thinking of them….

• Hitler – being a genocidal maniac, his “Chaplin tache” was an obvious choice, he was also a vegetarian, and a painter.
• Tom Selleck – He had a sports car, and his mate I think drove him around in a chopper. Nowt wrong with that I can tell you.
• The entire Royal Air Force – whether this was a compulsory part of joining the RAF isn’t entirely clear. I’ve had a quick look at http://www.raf.mod.uk/ and couldn’t find anything that said you HAVE to have a tache to join, but it’s probably verbally encouraged. Kept of the books for tax or health & safety reasons no doubt.
• Einstein – And he knew a thing or two about stuff.