um.... well find a PC Trash dump....keep your eyes out...people are chunking old PC towers out everywhere...Most of the old PC's fans are still good.....just take the tower cover off a PC, and rip the hard drive fan out....you can re-wire the fan to an old cell phone adapter....Take the old Cell phone charger/walkman and snip the( part that actually plugs into the phone) and cut it off. You want the FAT part that actually plugs into the wall....strip the wires from both parts....RE wire them together...plug in the ole phone jack and you have a working fan....Now,.............. next time you go to Wall mart... buy a can of "Activated Charcoal" from the pet department....and while youre there...get a Scotchbrite pad.....and some duct tape....call me back.. I gotta go...