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Interesting. Good idea as long as it doesn't discolor clothing or make it all stiff. I was driving home from a job interview yesterday rushed for time eating a cheese burger and i was dropping tomatos and burger juices all over my shirt. This would've been handy for things like that but I don't see where I would use it much in everyday life besides having fun and experimenting on my own.
As much as I would want to, you couldn't put it on clothes, though. You'd never be able to wash anything with it.