I adapted the idea of a living hinge and incorporated it into these stands which can be used for everything from business cards to index cards and photos. I have been using the for mini-placards with various quotations which I make on my K40 Laser cutter.
The dimensions of these stands is fairly critical. It doesn't work too well to resize them. If you wanted to do that it is better to resize the form, but keep the spacing and sizing of the slits the same. They can be elongated, but not spread apart or closer.
It is intended that these be made with 3mm (1/8-inch) thickness wood.