This is what my Mole Wrench looks like when I can find it.
One of the reasons I had such fun trying to repair the toilet last week was that I had lost my precious Mole Wrench and wasn’t able to use it to hold things still. My Uncle George used to say that the fastest way to find a missing golf ball was to get out a replacement. On that basis I’ve just bought another one. Surprisingly inexpensive. If you not got one of these they are jolly useful. You can even use them as a mini-workbench where they can hold things so that you can work on them.
The Wikipedia site for Mole Wrench has this amazing link to Popular Science from 1935. A fantastic read.