A card, designed to look like a kaleidoscope. You can customize the objects at the intersections of the mirrors.
I traced out objects, or modified existing vectors from wikimedia commons. I used the inkscape to openscad converter (http://www.thingiverse.com/thing:25036) to make modules that I could manipulate in openscad.
I selectively commented out parts of the pattern to make the dxfs, and then cut them out of different pieces of cardstock, and then cut it out using a silhouette cameo.