Impractical (note the hand required to keep it upright), but clever. Via Reddit.
Within moments, the entire group, including Brutus, was striking out at the dictator. Caesar attempted to get away, but, blinded by blood, he tripped and fell; the men continued stabbing him as he lay defenceless on the lower steps of the portico. According to Eutropius, around 60 men participated in the assassination. He was stabbed 23 times.