Critter--couldn't she just leave a space on the form she has for "Nominations from the floor" or something like that--maybe a write in candidate line and then save the rush to the copier? d
If the bylaws are silent on noms from the floor, and you operate under RRO, nominations from the floor ARE allowed. The person who runs the election that night (chairperson of your Nominating Committee??) should ask for any nominations from the floor. If there is one, she must indicate her acceptance of the nom (so s/he has to be present). Then the Chair asks for a motion to close nominations. THEN you vote. (you might need to rush to the copier and make up printed ballots on the spot). It sounds a bit clumsy and formal, but if you know there is someone lurking in the wings who deserves a chance to be considered, the process should be formal enough to give her the opportunity.