Well these boxy type ones in the link have a definitive pattern which is printable and easy as - just fold work. Which kinda looks like em minimates from marvel. really cute. My Paper TFs although I do have a definite pattern ut only for the base form, the detailing parts and the head all variates. Yeah you need a lot of patience building the head and face as its all 4D.
These fold bots sure look cute displayed in a row if I could find a shelf space to display em!