Somewhere a long time ago I saw a picture of a card with a cut out side with a crisscross but no directions. I thought at the time that I would try it someday and then forgot about it. I also forgot to bookmark the page so I had to try it from memory. This is the result.
It is quite easy to do but I think thinner cardstock would work better than a thicker one. For the inside I used Core-dinations which is quite thick but was the only cardstock I had in the right color. I wrote directions for making the card and you can download the directions in PDF format HERE. I chose to use a corner stencil to decorate mine but you could just as easily use a stamp. The stencil I used is Anja Style corner 4 FE 6126. you can find it HERE