Originally Posted by
zebede
Yes to packing tape (with fiberglass filament). It has no stretch. Is, latitudinally tear resistant. Buy a wide roll as it is easy to tear straight longitudinally, so that one roll serves different rim bed widths (perfect custom width every time).
To the OP, Kudos, for a low/no budget solution, and making things worth, with what you got.
Only thing about this type of tape is that it's one of the most difficult to remove from the rim (usually comes off in 100 shredded pieces) and leaves a residue-from-hell, behind. Set aside at least an hour for two wheels to remove and clean. Just sayin'.