Thermomorph
So I came across this goop watching Crimson Guitars recently (I don’t want to build guitars, I just find the woodworking part fascinating while finding the music part kinda meh).
Basically, take this plastic (which comes in little balls like styrofoam packaging), put a few tablespoons into hot water (60C/140F is where the magic happens) and it goes from hard white solid to transparent goop. Fish it out of the water with a spoon, give it a second or two to cool down so you can hold it without third-degree burns to your fingertips, and now you have something similar to mala (or plasticine or playdough or silly putty or whatever you grew up with); only when it cools down, whatever shape it’s in it sets up hard in.… Read the rest