I finally succeeded by putting something that wasn't easily removed from the trigger plate on the cheap wooden snap trap. Peanut butter or chocolate with caramel to stick it down with should help.
I didn't even know the trap had worked for a few days afterwards when I found it's decomposing body with a few well fed maggots over it. Gross!

The face on the mouse was a look of terror with it's mouth agape. Felt bad for it as it was quite tenacious.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!