Comment Directed energy weapons (Score 1) 209
Do not use visible lasers; they are too easy to track to the house they shoot from.
For blinding the drones (and not blinding live pilots) an infrared laser could be good.
Taken to higher power, a CO2 laser for a laser engraver can reach couple dozen watts fairly easily. With good focus and dwell time, perhaps could even cause structural failure of some plastic parts on the drone.
Yet another possibility is in the realm of microwaves. A sufficiently focused (perhaps from several houses, networked in an aerial defense grid) microwave beam could confuse the drone's electronics or perhaps even force internal overheat.
A guided model rocket with a suitable payload (or even just as a dumb kinetic projectile) could also do a good job. Such devices can even be unmanned and placed out as "mines", ready to be triggered by an overpassing drone. Suitable sizing of the rocket can ensure that only light, non-fatal damage will be inflicted to large manned aircraft (if hit by a mistake) while the damage to a lightweight drone will be much more extensive.