I would suggest consulting a veterinarian about your animal,,,, not a bunch of motorcycle riders and mechanics .. Either that, or hang a garden hose over it's nose, and leave it running a bit. Whichever you choose, good luck !
In winter months I suggest hiding bones in the snow. Most will melt and cause fluid build up. Or leave motorcycle by edge of roof, when snow melts on warmer days the dripping may come close to the impact point you seek.