I have this weird art medium I came up with where I take things in the fridge and cabinet that are past the date and turn them into art materials. It began because people I know always debated over what to do once something in the fridge lived its lifespan. Throwing it away always seemed wasteful, and throwing it outside for the animals to eat sounds generous to nature, but you end up poisoning the ecosystem.
The hobby began as I was cleaning out the fridge and wondered if a certain sauce that was forgotten about in the very back of the fridge would make a good paint. It then kicked off from there. In our world where we never know where what we eat comes from or is made of, sometimes something makes a surprisingly good paint when expired, sometimes it makes a good texture builder, sometimes an aroma enhancer, sometimes a good clay substitute, etc. I then find a way to make it last as long as possible, or at least long enough to show people. It sounds weird, but I have created some of my best masterpieces this way.