By Date
lighter 2 (auto version)
0 comments
pistol
0 comments
engine 2
0 comments
my first engine
2 comments
burnt coal block
0 comments
self igniting coal
0 comments
powdered spark..?
0 comments
pressure and heat sensor
0 comments
Impact Sensitve NITR
0 comments
it has blood it looks like
0 comments
;-;
0 comments