Drone cooling platform

Designed mainly for my DJI tello, but any of the DJI mini series, or any mini type drone will sit on there nicely for anyone having heating issues while updating firmware.
40 x 40 x 10mm fan. I'm using a 12V fan connected to a USB (yes 5V power) and plugs straight into the laptop etc. Even though the fan is underpowered, it still cools enough not to heat the drone and get a heating error before it shuts down.