Alloys sound interesting, I could try making something like that.
What about different types of thermite? Like copper thermite, iron thermite, etc. Each with their own characteristics, for example copper thermite would be explosive. To make them aluminium could be added, and it could be in a powder form as well, once you wixed the aluminium powder with copper oxide (probably brmt(copr)) it would make copper thermite. The same would apply for iron thermite except copr would be replaced with iron.
PSCN already generates sprk when in contact with UV
What about a solar panel element? It would generate electricity when it comes into contact with UV.
why better i liked the previous one
And yeah, if everything goes right we might fix the "notifies your own comments" thing too.
GodOfChaos: This implementation for led is way better than previous one. You don't need NSCN anymore to power if off, plus it's much faster. I am planning to make it glow in its dcolour (deco) for next version since the options are pretty limited right now.
add more noble gases, each with their own plasma color when ionized