I do not know how you feel these days, but here in Austria we have around 36°. But you might be as lucky as I am, if you have a Raspberry Pi laying around and two of these mini ventilators near you. If not, hurry, grab two of these, they give it away for arounf €1,-- (at least when it's cold, it could be that the prices are higher at the moment).
To drive the two mini ventilators I am using a L293D, which is capable of driving these two in two directions, so you might rotate them left or right, completely up to you....
I decided to use only one direction the final GUI looks like this:
To connect the two fans to the breadboard you need to solder two wires so they can be connected to the breadboard, this is more or less the only tricky part in this example.
Do not forget to turn on the switch on the fan, you might want to test your soldering by connecting one pin to 5V and the other one to ground.