LOW TECH FIX?
Thin, bare wire, approx 22 ga.
___________________________________________ attached to ac hot.
___________________________________________ attached to ac neutral
rinse and repeat as necessary, to cover the necessary panel area.
Mount on insulating rails crossing the panel.
Fused, of course at about 20 amps to prevent a bird from starting a fire on the panel...
SARCASM !!! for all you weaklings (or is it)
Actually all it would really need is around 30-40 volts, just enough to be really uncomfortable to their feet.