Thanks for all the responses guys. I'm looking to order about 100 bags to use for transporting my 23 BPs in a upcoming move and to use for shipping baby/young BP's so I'm looking to make a bulk order of snake bags. I'm going to be going through alot of bags so I don't think pillow cases would be cost efficient enough for the amount of them I'm going to need. Ordering 100 12 X 16 bags you can get them for about $.71 each.
I'm just wondering if there is any difference in quality between the company's that sell snake bags. So far they seem to be about the same. Although I've got to say I like the idea of blue thread to make it easier to spot open seams.

is there an alternative to snake bags in shipping i have seen youtube videos with snakes shipped in tupperware? is this bad?
I've seen small snakes like Corns and Kings being shipping in deli cups. I've only ever seen BP's shipped in snake bags or pillow cases.