With the Fujifilm XT2, it is very easy to accidentally toggle the ON/OFF switch while it is in your bag. Made a collar to protect the ON/OFF switch.
Notes
1) I am not sure if it will fit the other XT models.
2) With this version, the collar will not fit if the Metering dial is set to "Averaging", the right-most dial. The other 3 are fine.
3) It is a bit of a friction fit and maybe not well-matched but it was good enough for me.