If they are stickers try spraying the area with a solution of water with ONE drop of detergent in a spray bottle.
It allows you to position the sticker where you want and then use a squeegee (I use a credit card) to smooth it out and remove any air bubbles.
It also allows you to remove and reposition it if you need to - although I have never personally needed that function. Ya, right.


1951 Chevy 3100 5-Window
"Howard"
In the Stovebolt Gallery
More pix on Photobucket