you could do some interesting stuff with rubidium
you should make one that uses just normal non-special elements and no dest or bomb or conv
Somehow survived after a quick swipe with the erase tool
version i made with no conv:3249423
somehow i failed to destroy this with a brush size 1 PHOT
even dust on it will make it get disintigrated
survives temp 0 thing, try using lsns and sprk on tungsten, tungsten heats up very much, and lsns is sensor of anything with more than its temp of life, to detect of lower life than temp use tmp 2 on it with prop tool or console
it survives like very low amount of particles, brush size 1
Your goals are beyond my comprehension