That, and wrapping handlebars. I use a layer of old innertube underneath regular bar tape, and I don't need padded gloves.

Wait, arbitrary length? I can see small ones just by slicing the tube, or super-large ones by going all the way around, but what about in-between? Oh, I guess you can use more and more "diagonal" slices to increase the length rather arbitrarily (up to maybe even many times around the whole tube?) And what about smaller ones? I guess you can cut out a disc of any size, and then cut its insides out to make it a band. Very clever.