Wine Drunk Card
This is what friends do and you should probably let your friend know that you want to do this with them.
“Let's get wine drunk and talk about which celebrities we'd have sex with” is printed on a blank inside 5.5" x 4.25" (A2) super sturdy 100 lb white notecard with the Craft Boner logo on the back. These come with a kraft square flap envelope so the person getting it will have no clue what kind of goodness is inside.
Every design is hand lettered before being scanned in and put in a buncha nifty colors. Please note that because everyone's monitor is a weensy bit different, the colors on the card may vary slightly from what you expect but I try my best to make every card excellent.
These cards ship in a plastic bag in a sturdy envelope so even if your mailman is a dick you should still get it in good shape.