I am posting here a topic that @dusjagr came up with and that we discussed in a chat.
Making plastic from milk. Denaturing of milk to get Casein.
“From the late 19th century until the 1930s casein was the starting material for the plastic Galalith, the u. a. was used for buttons and jewelry, but also for electrical insulation purposes.”
“Friedrich Ernst Todtenhaupt (1873-1919) undertook with the Galalith Society at the beginning of the 20th century also attempts to make artificial silk, but they were not successful.”
plektren…
you can use it to make nice buttons:
Or art:
wikipedia
How to make plastic form milk:
Milk Casein Proteins: Ancient, Diverse, and Essential: