I kept meaning to canvas ideas on this and forgetting, then Paul's post in another thread brought it to mind.
Originally Posted by Boots-Paul
What are people using to block the trem when changing strings? I use a AA battery swaddled in the required amount of parcel tape to sit underneath the trem. I dive the trem, throw the battery in, let it return to zero point (where the battery starts doing its supporting role), then go about my string change.
It works ok, but it can be a bit of a fiddle to remove it once done. So, I wondered what others are using. Squeeze your clever-spots and squirt idea-pus all over me.