A Piece of Floss and a Hairdryer will do the Trick
Accidentally rip off the pull tab of a Command Hook? No big deal! You can still get it off damage-free. First, warm up the adhesive with a hairdryer. 30 seconds or so seems to be about right. Next, use dental floss or fishing line to gently cut through the adhesive strip. Rub off any remaining adhesive residue, and the Command Hook is ready to reuse!