Found this in a store not to long ago. Yes, it is NOT a postage stamp, but someone in marketing must be a stamp collector. Note the
cancellation and fake stamp, and the sell by date on rear as a received postmark would be. When this was folded it looked like a letter with thick contents. The chocolate was good as well.
Just thought I would share. Don't get up in arms, won't do it again, this was just too close to the real thing to pass up.

I have since desired more of this stuff, but haven't been back to the store to get any. Maybe next trip.
Enjoy.