Great egg-carrying case on the back.
And excellent multimedia piece on the inside (it even has a recipe for omelets on the back).
I responded with an envelope made from a page of the Philatelic Catalog.
And stamped with three chefs.
This one made it in good condition, however it gained a postal stamp I've not seen before:
I try hard to make sure postage equals or exceeds the required amount so that recipients don't have to pay for the shortage.
As the stamp suggests, I was good here - 3x49c = $1.47, more than enough to cover $1.15 for international + 21c for vertical address, and therefore non-machineable = $1.36