Posting this a little later than I had originally planned, Otakon 2014 was over a month ago, but I hope this is informative and helpful for those of you looking to order stickers for your own shops or conventions.
Stickers in this video were ordered from:
♥ StickerYou- http://www.stickeryou.com/
♥ PSPrint- http://www.psprint.com/
Sailor Moon Stickers from this video are available in:
♥ My Etsy Shop: http://goo.gl/b53uo3
♥ My Store Envy: http://goo.gl/hIZKru