Thanks for the offer corduroy cat, but I will look around in a comic book store.
I was ready to send a lot of ATC's out today. I spray sealed them yesterday, let them dry and put them in their plastic covers that are a bit roomy for them and then pressed them overnight in a big book.
I was just writing the envelopes to mail them out today and I discovered that the plastic covers have reacted a bit with the sealant

The plastic goes all bubbly on the sprayed atc's. Fortunately, the cards itself are not damaged.
My solution will be to let the cards air a bit today... Probably you will receive them without plastic!
Also had a weird glue bleeding reaction on one card..... grrrrr

I need to cut that all out again.