The Powder Toy

laser gun
yoemso 28 comments
USS Oliver Hazard Perry
vanbeckumchris 38 comments
Automatic Dishwasher
the-newest-dog 3 comments
Planetary colony
m3mggl 21 comments
Spacetown-2
HapyMetal 3 comments
ecosystem in a dome
atom10 36 comments
HDD read only
FrenkeeS 17 comments
ITER
PhotonPhysics 2 comments
Skybridge Cave City
KetchupMaster 46 comments
Red Mist Cannon
ashax3 10 comments
Prot Cannon II
dylanowen 19 comments
Halo ring activation
theyellowplanet1 9 comments
Jerry the Slime
zacgarby 14 comments
Outpost 9
thephysiclord 4 comments
Remote detonated infinite fusion bomb.
ElectricTech 28 comments
WIFI+PSTN based counter 0-999
kapec512 8 comments