After the last origami post I remembered I had some old sheets from classes I finished. I remembered about this model
Origami slinky that requires a lot of paper, around 50 units or more. It's an interesting model since it's very simple and there's no specific unit limit. I'm considering also making the origami Jacob's ladder from this paper.
The units are actually very simple to fold and combine, a good size square is around 8cm, here's a short instruction:
Mark at half and mark at quarter
Fold towards the second line, unfold
Fold in half and unfold
Fold towards the middle from both sides
Fold at a 45* angle over the fold in step 2 (the open side is on the right, very important how you fold)
Unfold last fold and reverse it
Thanks for checking this out, sorry about the lighting in some of the images.