So you've joined the IoT revolution, but your mother-in-law keeps powering down your cool new IKEA Tredfri light by flipping the room's light-switch to off instead of using the remote!! No need for a family feud, 3D Printing has come to the rescue:

This model takes the strong “Don't turn this light switch off” message provided in galactic's original design and adds a mounting point for the magnetic base for your Tradfri programmable remote. For the mounting pegs, I borrowed liberally from the very clever design in csicar's Tradfri mounting thing.