Reusable Childsafe Bag

I'll trade you a burger for it

Does it come with any crumbs?

Will this work as a hat? I have an enormous head.

Unlikely that one was sent to the King, [as a last meal Circa Aug 10, 2019], perhaps---https://www.amcp.org/resource/white-brown-clear-and-gold-bagging

How many children can it hold?