Press-ups (floor to lock to floor) to failure per set - 1 min recovery intervals between sets.

31 - 13 - 15 - 10 - 11 - 11 - 10

For me, 1 min intervals is a bit tough, although I wondered whether the fact I reach failure quicker in subsequent sets is better than, say, 2 min 'rest' intervals with more reps before failure.