https://phys.org/news/2019-03-starch-backbones-lab-grown-meat-lego.html

To produce fine starch fibers using electrospinning, electricity is applied to a starch solution as it dispenses from a nozzle. The electrical field that forms between the nozzle and a rotating collection drum draws the starch into long threads. In wet electrospinning, the drum is submerged in a bath of alcohol and water to help congeal the fibers.

In a study recently published in Food Hydrocolloids, the researchers built an inexpensive electrospinning device partially using the popular children's toy Lego.