I noticed that some are using silicon for adhering things in some of the above posts.  A very serious warning, if you are using the type that gives off the smell of vinegar as it cures, you are flirting with danger.  The fumes are very corrosive to electronics, especially in a closed area like a fuselage might be.  If you must use it, they make an electronics compatible version (at a much higher cost) which will not corrode your electronics.