They adhere well to any clean smooth surface and are easy to apply yourself. They are terrific for signs and for on your car trailers. Some people put them on their garage doors where they park their Thunderbirds, some on the tool boxes, some on the windows of their cars. The ideas are limitless. They will adhere nicely to plastic and vinyl banners if you are having an event and want to jazz up that banner that you will hang out for all to see.
Prices vary with size.
Custom orders are also welcome, if you have good artwork I can usually make the decals.