To stick on a decal or sticker onto any object ensuring that it goes on straight follow this tip. Make up a soap solution of 20:1, 20 parts water to 1 part dish washing liquid. It has to be quite slippery. Wipe on a generous amount of the soap solution to where you want the decal to go. (a better way is to spray it on with a garden spray bottle). Once you have wetted the area stick the decal onto your object. Move it around until it is in the right position and then dab off any excess soap with a paper towel. Let the sticker dry until you touch it.