Jon,
I am going to revert my Cafe Racer to normal (euro)handle bars and remove the rear sets for a while. Recently, and especially now we are heading into winter, most of my mileage has been urban. Not the best place for an extreme riding position.
To that end, I am going to temporarily change my bike a little. I cannot call it a Bobber as I am not going to hardtail it and I am not going to remove my fenders (in the winter in the UK!!!). However it will remain with the 'stripped down look' and I might make a new single seat (very basic plywood base and foam covered with leatherette or something) fixed directly to the frame.
I am not going to do anything I cannot undo - no welding, as come summer I will probably convert it back to the Cafe Racer any way.
So show us yours then!
Cheers
Steve H