Straight Escape is a cool 3D printed take on an old sliding puzzle. Set up the pieces in the starting arrangement then move pieces up, down, left, and right to get the 'hero' piece through the slot. PDF instruction and solution guide included.
I paused the print and swapped colors near the end of my print to get those black and white stripes for an extra striking appearance.
The 'slip case' is meant to be printed in vase/spiralize mode with a few bottom layers and no top layers. You may also need an elastic band to hold it in place for travel. I love Grifiti bands for such purposes!