Hockey.......It's no problem without the receipt, if you type in your ama # it will tell you if you are a member or not. They can tell that way.
The feild does need to see them. I know it sucks but when there is about 70% of the club being older peolple (50-65 years old)
(NO PUN INTENDED TO ANYONE!!) 
they want everything to go their way. We put up out AMA card with our membership card glued on the back, LAMINATED for protection, and we hang it on the frequency board. I have seen people go to the board and look at all cards to see if they are up to date. And if any of them are out of date......you sure as hell don't want to be that person. They make a BIG deal about stuff like that.
HECK YEAH i'm duin the honors this time. I ain't gonna let no-one get close to this one. I have too much money in this one for someone else to screw it up. I counted up how much I have in this plane and with all receitps put together. I get $756.43 WITHOUT transmitter and fuel.
WHAT ABOUT YOU OTHER GUYS.....HOW MUCH $$$$$$ YOU GOT IN YOUR PLANE????
HEY THANKS FOR THE LUCK......I MIGHT NEED IT!!!
Joe