[Swordmaker]

Drill a 3.5mm hole in it to let the heat out.

use at least two holes, and then pump water with anti-freeze solution through it to better cool it down. That will be even better. . .

[Portcall24]

use at least two holes, and then pump water with anti-freeze solution through it to better cool it down. That will be even better. . .

I believe there's a micro-pump already in there...all you need is the piping and anti-freeze.