That's interesting info about using a horse trough. This might save me quite a lot of money on a tinbanger (the trade word for "sheet metal worker"
)
My biggest issue at this point is, where do I even set up something like this in my teeny, packed house? But that's for a different thread.
I liked all the ideas you folks had on here. I will be keeping these in mind, including checking Craigslist for a fan. $ 20.00?? Wow! I won't get that lucky, but that's less than the $ 400 or so that I thought I'd have to pay.