Note to self: spend more time learning origami to produce cool things like these. I have absolutely no idea how anyone could design the folds to produce these, let alone actually execute them. I expect it requires considerable patience and concentration, two things that I am lacking as of late.

In the meantime, I'll just think about purchasing an origami boulder. You never know when you'll need one of those.

Today's bonus puzzle: one of the previous paragraphs is about seriously impressive art, while the other is a complete joke; can you tell which is which?