Adhesive tape (a.k.a. pressure sensitive tape, PSA tape, self-stick tape, or sticky tape) consists of a pressure-sensitive adhesive coated onto a backing material such as paper, plastic film, cloth, or metal foil.
Margriet de GraafSparkfun Copper Tape - 5mm (50ft)Quite narrow tape, but it works well for making a circuit (for making a Christmas card with LED light).