Stupid but neccisary question

Can i use a cardboard box line 3 / 4ths of it with emergency blanket and either dangle Cfls from above or poke them through on the Y sockets, with a fan mounted directly abvoe blowing down or a hole in 1 side circulating air from underneath and up?

ive done it before. cardboard is prone tomold though

This, haven't done it but a friend.

I have seen people do this, I personally would not try. Are you going to be around in case of fire?? A cardboard box will go up in a flash. Be careful