I can ahh still anyone fancy a swap for rabbits, polecats and otters. Joking they are enough of a pest.
Your pest are far cuter.
Anyone fancy Rabbit pie, I made a killer chicken and rabbit pie once. Yumm.
Polecat aka chicken murderer. Evil little blights.
Rodenator -that looks like something out of the movie "Over the Hedge"
I'm not so sure I'ld want to use anything that combines flamable gas with oxygen.
If you do figure out something let me know. We have them all over our place and even the coyotes don't want them.
You might want to try this -
A 308 turns a groundhog inside out, a does a22-250.
I find that a generous application of ammonium nitrate and diesel packed into the holes, with an ample ignition of smokeless powder is quite a deterrent to the fuzzy monsters. Of course, such things are illegal in general, but quite entertaining nonetheless.