PRANK YOUR FRIENDS! Mail a DIY Rectal Exam prank envelope 100% ANONYMOUSLY! ***FREE SHIPPING!*** Inside the mailer is a prank card, which is blank on the back. It will absolutely keep them guessing! We'll mail this completely anonymously from our PO Box in Michigan, with no invoice, receipt, or packing slip, directly to your victim! They'll never know who sent it, unless you confess! (and we'll never tell) So mail some fun and embarrassing hijinks... PRANK SOMEONE TODAY!