Instead of using console tape for creating mixer labels, some sound people prefer using magetic labels, one per input channel.
These are expensive, but, over time, may be a good value, since they can be used over and over again.
Before considering this purchase, make sure that the mixer(s) you intend to use them on actually have metal faces. More and more electronic equipment is being built from plastic, aluminum or composite materials. Once it has the channel information screened on to it, it may look like metal, but the magnetic labels will not stick.