I have gone to the show every year, and always found several things. Today I found a full 500 round brick of Remington 22 LR that has dog bone boxes in it. I have always loved the green and red boxes, was surprised to see a fairly plain box (well there were two bricks, but i just bought one).
In addition, picked up a full WW2 german 9mm box
And a small, 6 cartridge box of grenade for a carbine - I had never seen a small box, so I bought it
And this very pretty Winchester Velo box of ammo (2 rounds in it)
I know the covering I put on them this afternoon squishes them a bit, but I have dropped and ruin more than one box.