Hi! Please message me to bundle anything! I offer discounted prices for 3 or more items! All stickers are made by me. *THESE STICKERS ARE NOT WATERPROOF* I purchase tracking via LetterTrackPro which is printed on the envelope as a USPS intelligent barcode. You can reach out to me for the tracking number which can then be traced here: https://www.lettertrackpro(DOT)com/usps_tracking.asp Męrcari unfortunately isn’t compatible with LetterTrackPro, so they consider these tracking numbers to be “invalid.” Due to this, I rely on you in order to complete each transaction. I would very much appreciate if you would rate your purchase once you’ve received it. If you have any questions about anything else or would like a tracking update on an order, please let me know! If you would like to request any specific stickers or to customize any, please message me and I’ll work with you as best as I can! :) Read less