Long a dream for lions, a practical way to have a swamp cooler has emerged.  Basically a stationary atomizer on a tripod would be placed in a fixed position in front of the F-35 nozzle.  It wouldn't look like an afterburner & the nozzle would have to be manually pointed at it, but given the nozzle direction being static during the hottest time of day, it would work.  The atomizer would be fed by a simple tube & aquarium pump.  

A 2nd atomizer for running could be placed on the camera pole & aimed with the existing camera pointer.  It would have a more limited supply of water, but it might be enough to cool off a lion running next to it.  It would also spray anyone nearby, but few animals come near the mane.