I was lucky enough to be invited to a bike show this week and amungst all the fancy expensive bikes and kit there was a bloke in the corner on his own demonstrating this
It was the best thing in the whole show.
Its basically mouldable silicone. It comes in primary colours so you can match any colour. Its used for allsorts but mainly to fix things you would normally throw away as its beyond repair. It sets hard after 12 hours.
I've ordered some from the tinterweb and while I am waiting I've been looking around my house for things to repair.
I hope you find it as interesting and useful as me.