Crazy thought:
You sign up.
You put together a package. Inside the package is:
A.) a gift-wrapped game from any Nintendo system. It can be open/used or sealed/new. On the outside of the package is your user name and the name of the system the game is for.
B.) a note saying which Nintendo systems you own and want games for.
C.) a pre-addressed, postage-paid bubble mailer.
Mail the package out to someone. That someone then, after collecting all the packages, does their absolute best to match the games they received to the wishes of the folks who signed up, puts the games in the pre-addressed envelopes and mails 'em all out.
You don't know who you're buying for or who is buying for you. Everyone gets a new game. Could be something they already have, could be something totally new to them. Could end up with America's Test Kitchen or a Gold Championship NES cart (heh).
Anyone interested?