Hot, hot, hot!
Here is a quick way to keep stay cool with a style.
We will need:
✔ Styrofoam box
✔ Fan - more powerful, better. We used USB fan, but 12v fan would do a better job
✔ Glass bottle and bottle cutter to make a tube (We used Ephrem's Bottle Cutter)
Or you can use a plastic tube if you want. Glass looks cool :)
✔ 2 diodes, battery holder with batteries, switch
✔ Other: glue, cables, plastic sleeve, black acrylic paint, painter tape, etc.