If you have a smaller tent (not one of those massive multi-room ones) then this might be worth a look. A tent fan/light combo that hangs from your tent ceiling via magnets. I'm thinking this will help me sleep in during the morning heat, and it's a small gamble at this closeout price ($8, normally $25). Mixed reviews on Amazon, but again, closeout price makes it worth it, I think.
Coleman Zephyr Fan $8 closeout