Plastic Bottles & Corks for Message in a Bottle Invitations, Announcements & Favors (Plastic, 20 Bottles) Bottles are about 7" inches tall. Recyclable, food grade and Made in USA. Clear & high quality Plastic from original InvitationInABottle for wedding, baby shower, sweet sixteen, birthday & more. Perfect for invitations, party favors, sand arts, craft projects, school projects and even Christmas holiday decoration ornament. Mailable; Can gothough mail just like a package mailer (no box needed).