Why not just cut down a plastic signal mirror to whatever size you like and carry it between sheets of plastic? Remember, the bigger the better when it comes to signal mirrors.<br><br>I notice that the flat watch crystal on my cheapo Casio watchreflects light rather handily, so I suppose it might work as a back up signal mirror of sorts. I would hate to imagine the situation where I would be so desperate as to actually use it for this purpose, though. I always pack a real one in my PSK.