We live in a village outside Bratislava in Central Europe. This is prime agricultural land and there are infinite numbers of moles in the fields around us, so some will eventually stray into the garden. Once they are enjoying the good life in the village, it can be hard to convince them to relocate. I tried a few things and can now present here the 100 Horse Power Mole Eliminator : It costs nothing and it works. If you have an old lawn mower, garden tractor, or moped, that may be easier to move around and it produces more global warming badness, but a car starts with the press of a button and a couple of hose pipes clicked together, to go from the driveway to the far end of the yard, works well enough. The trick is to get all water out of the pipes before you start - lift it shoulder height and walk along the pipe a couple times. The exhaust of a modern car is not very hot and will not melt plastic, but I used a short piece of metal pipe since I really don't want goop stuck to
Autonomous planes, trains and cranes...