For you information from some PM's I have received the stickers are die cut to stick ON to whatever surface you choose. So suitable for both bikes, cars, windows, staff vehicles, weapon systems etc.
Make sure the surface is as clean as possible (use spirit to clean first) then carefully remove the backing and press the sticker in required location. Rub the covering paper to ensure the lettering is stuck and then slowly peel back the covering paper. A final rub of the lettering to make sure the edges are stuck and you're ready to go.
Aha, Bombay Duck in the Co's Rover Engine Compartment and a nice ARRSE Sticker on the rear of said vehicle...
Talking about Stickers, is the ARRSE PotatoHead Cahracter, complete with ARRSE URL below available in sticker format yet? now that would indeed be a fine Visual Competition somwhere on ARRSE... "Where have You Stuck Your Arrse" - nowhere would be safe