Check out walmart, look in their stationary section, there you can find a litany of magnet bulletin boards, in all manner of sizes.
Then get your self some 3M 4408, 1/2 wide, 1/8" thick double sided tape. It works excellently on stainless, especially that stuff GE uses.
Make sure you put the board on right where you want it though, once it up, it may not want to come off, lol.
Thanks bear
We (Jan and I)are not unhappy that we lost the magnetic fridge door. Our kitchen floor is Terracotta clay tiles and stepping on a fridge magnet in your stocking feet can be unpleasant. I thought maybe a magnetic bulletin board on the back of their bedroom doors. Any loose magnets will likely be caught by the vacuum cleaner and the problem will eventually solve itself.:lol: