It would certainly make for an unusual fashion statement.
There are many dollar stores that sell bubble wrap but since you are trying to send a delicate pottery item, I would suggest you to visit the hardware stores to get good quality bubble wraps
yes
Any office supply store would have decently priced bubble wrap for your packages. For example, Staples offers standard bubble wrap 12x25" for just 6.79 each and can be purchased in store or online.
food
Glue a sheet of bubble wrap to the inside of a mailer envelope.
It is an insulator. It would take many wraps to make it become a good insulator. There are much better products in the market place to use for insulation purposes which are much safer.
because they fly
Air bubbles.
Bubble wrap is better because it contains air, which is a very good thermal insulator.
Depends what you are insulating against but bubble wrap can be good a insulating.
your ear likes the sound of bubble wrap popping
Polyethylene (LDPE) film