This is a case for the RZLblink soldering kit.

The blink is basicly a USB controlled RGB LED.

It's a clone of the ThingM kickstarter Project called blink1, therefore it is compatible to the blink1 firmware and tool stack.

Pro Tip: Print it upwards ;-)

Just print it upright, with a layer height of 0.2mm the print takes ~ 30min and will weight about 2g.