Sidenote: This trap, like any other, does kill the animal. If this offends you in anyway, please do not continue with this instructable, and please do not send angry messages.
Step 1: Materials and tools needed
5 gallon bucket
Wire of some sort
Stick or board or anything that will work as a ramp
Wire cutters (if your pliers don't already have them)
Hole punch or drill
Step 2: Drill 2 holes in the can
Step 3: Drill holes in bucket (optional)
Step 4: Insert wire
Option 1: if you drilled holes in your bucket. Thread the wire though those holes and then bend the wire around the lid and wrap the extra wire around. This will lock it into place. Reposition can to hang in the center of the bucket opening.
Option 2: If you didn't drill holes in the bucket. Measure out the diameter of your bucket and put 90 degree bends on each side face toward the ground. Put the entire wire/can assembly on top of your bucket's rim. Then firmly push your 90 degree bends towards the bucket, locking them somewhat in place. Reposition the can to hang in the center of the bucket opening.