Supplies: a 2 liter bottle, an Exacto knife, clear packing tape, a mailer label, a hot glue gun, and goodies to fill your bottle.
Step 1: Clean and dry your bottle. Remove the label. Using your Exacto knife cut a 3 sided rectangle creating a flap to stuff your bottle. I made sure the flap was large enough to fit my items, but small enough that it would be hidden by the mailer label I printed.
Step 2: Fill your bottle with goodies. I hit up Target's dollar section and filled her bottle with fun little knick-knacks. I opted not to send her chocolate as it was going to be very hot that week and I didn't want the chocolate to melt.
Step 3: Seal the rectangular flap using your packing tape. Use your printed mailer label to hide your secret door, and make sure your return address is clearly legible.
Step 4: Using your glue gun, add a ring of glue to the threads of the bottle lid. Screw the lid onto your bottle. And now you're ready to mail your fun package.
A few things to keep in mind:
-Postage depends on weight, I cost me $3 to mail my package.
-The bottle is see through, so it goes without saying don't mail anything of value.
-Make sure your label is adhered securely, as many people will be handling your package. So tape down any corners.