Couldn't find a L.E.G.O light switch cover for standard UK light switches so I made this one. Several versions available with or without screw holes, both versions should attach to the light switch using friction. This design works on the switches in my house (see image for example) but can can't guarantee it will work for yours (I'm only assuming mine are pretty standard). Let me know any issues and will try to fix.

Note internal dimensions are 85mm x 85mm, please check that you switch is close in size to these measurements before downloading.

Double switch version available here.