You could build a snake trap. It consists of a box about 60cm x 60cm x 10cm (or bigger depending on size of snake). It has a lid that lifts on hinges to reveal a second (lockable) lid made of perpex, so that you can view what is inside without it escaping. On one side near the corner of the box is the entry door which is made of wood or perspex, with a few small holes drilled into it to allow the scent of the dead mouse (which is placed in the centre) to escape. The door can only open inwards. Inside the box is a series of walls that form somewhat of spiral maze. The purpose of this is that it means the snake can't stick his head in, grab the mouse and reverse back out. He has to follow the path around and around until he makes it to the centre of the box, hopefully his full body will be inside the box before he reaches the mouse, making escape impossible. i think that's about it, i actually have one at home which i made back in high school for a wood work project. I've never used it but i saw it being used on tele once and with great success.