Our toilet is broken...

Well actually, we're lucky, only one of our two toilets is broken.

I contacted our plumber of 10+ years today and he said basically "Use the other one, I'll see you tomorrow at 7am".  Fair enough.  I wanted to let the other family members know that the toilet was out of service so I stuck some masking tape on it....  I then realised no one would see it so I considered writing on it.... Hmmm, the Sharpee will go through the tape and mark the white seat.... I know!  Put a sign on it.

This was the first thing that came to hand - that'll do :)