Dips
There are mad videos of the pullup bar and the extreme workouts being done on them. Here is a clip of the dip bar. This not only is working the triceps to death, it is a mad serious core workout. You get the muscle ups, the running man, a variation of pushups in the iron cross position, weighted dips, rollover pushups and to top it off the 655 # deadlift. What do you know about the dip bar?