Gassing seems pretty easy and great for people that may not want to see what is going on, but setting something like that up would be far more involved than my needs are. If I ever need to do several at a time or want to process several rodents at once for storage it would be awesome.

Pillow case method seems pretty good. Is there any easy way to hold a rodent wrapped in a towel and use fingertip to do the break? A specific place to feel for that a quick finger motion can do the job? Or is my farm life upbringing leaving me looking for something impractical or untried?