This is John carter's trading (author of 'mastering the trade') desk and he uses medicine ball to sit
.. i really liked that idea !!
1st picture - his old trading desk (been to that San Antonio office)
2nd picture - same desk
3rd picture - new trading office..he believes that a trader should be away from all kinds of distractions
.. so, took an office few blocks away from his home.
He has multiple instruments (charts) on his monitors and whenever he gets a signal in any of his instruments, he takes it...works for him..