Playing around with Peltier

A friend brought me a Peltier element (see Thermoelectric cooling) he had lying around.
I thought it would be cool (pun intended) to have a DIY beverage cooler on my desk.
All you need is: an aluminum heat-sink, a 12V fan and few LEDs.
My 9 years old kid soldered everything in parallel and of course burned his hand (please don't report to the social services, we only learn by making mistakes)

14 degrees Celsius is fine, but why not kicking it up a notch.

After replacing the linear power supply (500mA) with a PC power supply, we have 3 degrees less.

The next step would be finding a CPU fan + heat-sink and 3D printing an enclosure.