I recently got the opportunity to supply single "cookie grams" to a few west coast sales teams. I'm looking to find a box that could work. I need to be able to have enough room to pad (either bubble wrap/paper shred), but not too much room that breaks in transit.
I have found a few on uline that might work:
5 x 5 x 1
6 x 6 x 2
6 x 6 x 1-1/4