I recently came across this wonderful Pop-Up Card on Instructables.com.
It takes about 1 hour to prepare the card (I did it on PowerPoint, and
the file is available if you want to start from something already
half-done, the link is provided below).
For each card the cutting/folding is about 10 minutes per card.I did the card mostly using PowerPoint. Once the basic template is done
(you can download a blank one without pictures here) it is very easy to
make it yours, and add you own photos to it.
To add the pictures in the "boxes" of the powerpoint template, you will
have to double-click on a given box, And change the "Filling" for the
box (depending on your PowerPoint version, this should appear as
"Color").
You can see on the attached screenshot what appears on my Powerpoint:
Now just print it on hard paper, and use a sharp cutter and a ruler and open (cut)
all the horizontal borders of the boxes.
http://www.instructables.com/id/Fractal-popup-Christmas-card/