We ArtCar folks use 100% silicone as our main adhesive. It is weather resistant and remains flexible in all situations. For clothing, get a small hand-squeeze tube rather than one of the big ones you need a caulk gun for. I have spots of silicone on my studio clothes that have been on there for years, through all types of weather and in the washer and dryer. You can't get this stuff off, unless...you use rubbing alcohol.
You don't have to be skinny, naked and under 30 to be a Hottie!