Today I learned that black hockey tape is an excellent stand-in for gaffer tape.  This is good for at least two reasons:

1. Real gaffer tape is incredibly expensive; black hockey tape is not very expensive
2. I already have a lot of black hockey tape

If you’re unfamiliar with the wonder that is gaffer tape, it’s similar to duct tape but has a cloth backing instead of a vinyl one, and it has an adhesive that will neither leave a residue nor destroy what it has been stuck to.  It’s commonly used in the photo and film industries, hence the name.