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Jason LI should know this more definitively, given my round-on-the-edges shape, my Chicago upbringing, and my propensity to enjoy baked goods from that company...However!
I cannot recall for sure.
I seem to remember that they were in clear, sealed plastic wrappers and placed on the inside-bottom of donut boxes, but I am not sure.
This is one of those things that I didn't get to see first-hand at the time, because:
1) I didn't go grocery shopping
2) My Mom didn't care enough about me to make sure that she was in the stores first to beat out all the hoarders 
Edited to add:
They are a neat over-sized piece to add to your collection...I should have put this over on the Bread-card thread, since they are definitely from a doughy source!