yeah i'm surprised that they don't have a symbol. but it would have to be something that represents both colors separately or two different symbols (one for black resigning and one for white resigning so you'd know which side resigned).
i kind of like the $ idea (just as arbitrary as the #). but you'd probably need $w for white and $b for black or something similar.
I'm just saying. I hate it when I'm going through a game on the computer and I click for the next move and nothing happens. I mean, it's not that unusual for my computer to be slow! So I click again...then check the notation....and by then all the thrilling velocity of the endgame has sputtered away. Should be something simple, preferably something on the keyboard. I was thinking of $ for "cashes out." (Or @ for "at peace.") You probably have better ideas.