The Powder Toy

ok

Electronics that work quicker would be nice for complex electronic creations like the processors. They would be able to work faster

CoatsyJnr  It would just be a name on the screen

I don't know how hard this would be but could wood get wet and then it would be harder to burn

maybe there could be ink or something like it which could be used to mark or color things the opposite of the color that it originally was

goo disappears under pressure and does not conduct

I think that steam, once it gets to about 2000 degrees it should turn into plasma. (maybe hotter)

This would have to be the biggest necro I have ever seen 

The best one I've ever made is the water powered factory which isn't very impressive but it's good enough I think