Here's one I designed for Valentine's day.
Step 1: Getting your materials together
- Card - A4 size
- Pencil - a light one that you can rub out or colour over so it won't show
This card requires you to be able to draw a face. So if you aren't sure of your artistic abilities you might also want the template below. Or, in its original size, here: http://www.instructables.com/files/orig/F2V/H9LP/FCTI5KUQ/F2VH9LPFCTI5KUQ.bmp
Step 2: Cutting and folding the card
Now measure about 8cm ( roughly 3") in from one end and draw a line across the strip. Draw another line about 1cm (a little less than 1/2") further along. Do the same from the opposite end of the strip.
Now crease the innermost lines by folding the edges of the strip into the middle. Unfold the card and then do the same with the outer lines, except this time leave the edges folded into the middle.