Yeah I doubt I'd be able to put one behind my head anyway as I have really long hair that'd almost certainly get hung up in the fan at some point. That'd be entertaining at some convention and my hair gets sucked into the fan. Folks would see me freaking out, trying to get my bucket off-so I'll deal with the heat with two fans up front as mentioned by superjedi.
Ever painted someone's armor for them superjedi? You're really good at it and if you don't charge a fortune, it'd be great to have a set of armor painted by you...I'm not doing to bad with the painting now, but it's nowhere near your talent. PM me if you're interested.