This set of 4 mouse traps are small and easy to set. I hate having to have these, but it is reality and I wanted something that is easy to use. They are super easy to trip, so be careful. I do think they trip a little too easily, though, so there might be some that are a bit better. But they do the job. Not sure how well they hold a wiggling mouse if it isn't dead, though.
Get yours here: https://amzn.to/2xbNS6i