"It doesn't take a super-genius whiz kid to come up with zombie-killing devices. If you had the workshop, the materials, and the time, what kind of mechanical death would you unleash upon the zeds?"

Being a boat mechanic I start thinking about using outboard engines and possibly lawn mower parts.
It would depend greatly on fuel supply.

now an outboard being converted to run on hydrogen, now that's a thought..

 out of  found this valuable. Do you find this valuable?