eBay

100 Thanksgiving Mailers - A great choice to mail packages!
Durable High Quality Flat Poly Mailers
High Strength Self Sealing Strip -the adhesive will bond and hold for overstuffing
Non-transparent Privacy for the items you have inside
Tamper Evident Packaging - The adhesive seal permanently bonds making opening a deliberate choice
Lightweight Packaging -Saves on shipping costs

BONUS:

100 - 2" stickers on a sheet... 20 stickers per sheet. Matches the envelope to complete a look to your customer!