The Powder Toy

Doppler effect
00yoshi 38 comments
Sinkholes 101
Matera_the_Mad 33 comments
Troll Physics Boiler
Jokersona 58 comments
Automatic Digital Thermometer
Sandwichlizard 33 comments
half-life guns: good deco!!! I think :P
jward212 47 comments
H2O Generator
thepowderscientist 39 comments
Expecto Patronum!!
Pardock 55 comments
Simple Bubble-belt
groudon 39 comments
NANO Cannon
MSFMiller 83 comments
Aircraft War V1.3
MirkoMerotto98 84 comments
Smallest flip flop 1 spark
CallyFTW 51 comments
Epic FIGH Battle
Okte 108 comments
Quartzum Counter (timer | 9999)
MONIFEST 36 comments
IJN Shinano
qwerty1 30 comments
nuke factory
combustion-man 20 comments
Pokemon battle
AKASHS 89 comments