Actually I just might be able to make Tabata baby L sits barely (with my baby at current weight, assuming she would sit still for 4 minutes, which would not happen). Last few sets would kill.
Tabata planche pushups would result in folks lying on the floor laughing after about 1 or 2 cycles and completely unable to do any more. And that's with guys that can do them well to begin with. Even tabata elevated feet pushups get pretty funny after a few cycles.