I hate wen the power switch of the lamp hanging on the cable somewhere under the table. So I make a clip to keep the switch convenient on the frame of the lamp.

I hope you will like it.

I have similar model for IKEA TERTIAL Lamp (503.553.95) Power Switch: https://www.printables.com/model/358121-ikea-tertial-lamp-50355395-power-switch-clip