I found this while am browsing dezeen.com
nice ideas for mouse traps , with very simple concept “only to catch mice, not to kill them”
first one:
it has a bread stick stuck to spring , when the mouse come in the the bread stick will break and close the cup over the mouse.
second:
light bulb but in horizontal way and positioned by nut and paper clip , when the mouse come in will release the light bulb and the mouse stuck in 
third one
very simple idea the mouse will climb the spring to reach the cheese then he will fall down , bye bye 
the last one i don’t understand will but i just put the pics
it some thing like he can expand the spring to get in then stuck inside it but he can’t go out cause he cant expanded from inside .
have a nice time with the mice but remmember don’t kill mice
