This doesn't seem safe...

[JediTT]

http://www.popsci.com/article/diy/create-smoking-pumpkin-e-cigarette

 

[Tripster]

Just buy/rent a fucking Fog Machine, ffs!

 

[Warhawk-AVG]

to heck with that...make your own

http://www.popularmechanics.com/hom...y-fog-machine-for-a-spooky-halloween-16024637

http://www.howtogeek.com/96354/5-diy-fog-machine-adds-dirt-cheap-ambiance-to-your-halloween-party/

haha....wonder if this could be used for "group vaping"