Decals.

For your viewing pleasure, here is a selection of decals; I'm not sure whether they'll all be on the bike.
For sure the big BSA ones on the sides of the tank, the Lowbrow Customs piston on the headstock and the big silver 'Made in England' on the right-hand side of the front downtube.
I'm also having a couple of decals made, one for the fuel tank, one for the oil tank. You probably won't see those until they're actually on the finished motorcycle.