Remember Israel’s Daika Wood (see here) that recycles waste wood, molding, or 3D-printing it into “impossible” shapes? Researchers at the Hebrew University of Jerusalem have now developed paste from recycled wood that can be molded in 4 dimensions – shapes that change over time.

https://www.timesofisrael.com/israeli-scientists-produce-3d-printer-ink-capable-of-producing-wood-products/

https://www.youtube.com/watch?v=VYe7bDuEDds