Rubik 1x2x13

a.k.a. Unlucky Twist
Designed and custom made by Oskar Van Deventer, 2013.
(plastic, made with a 3D printer, 10.25" x 1.5" x 3/4")

A larger version of the mass produced Rubik 1x2x9. Here are photos of successive manipulations, where the third photo is a close up of the center of the second one to see how the mechanics of how the layers build out from the middle cube: