If you have gotten a rub-on in the wrong place and need to remove it here's a tip. Use a piece of ordinary mending tape (scotch tape)by first sticking and removing it a couple of times to your shirt or clothing to decrease its tackiness and then placing it over the errant rub-on and burnishing it slightly and then lifting it. You may be able to remove it without horrible damage to your artwork. This procedure does not work to remove rub-ons that are in the midst of other rub-ons unless you are exceedingly good at masking the other areas to protect them. This was tip was used in the graphic design field way back in the "old days" before computer assisted design happened.