This is a little power strip holder I designed to put in the side of my desk, where it is handier if I need to unplug anything. These desks are very common in student apartments in the US, I think.

The holder clips on the 1.1/2 x 1.1/2" steel tubing in the desk and secures the power strip in place through a ziptie. It has an internal channel for the ziptie (the smaller, ~4.1/2" long one).

No need for supports.

Original Inventor .ipt for you guys to edit it if you need to change size.