Show us your home made tools

Thanks this thread gave me some good ideas. Maybe some one can get some good ideas from what I've made.

1: Degreeing wheel made of a degreeing wheel printed on a 11 x 17 inches paper then glued on a pizza cardboard. Took a welding rod that I've bent to a pointer.
2: Piston stop. Using it when the head is removed when I degreeing a cam.
3: A copper pipe flattened. Placing the flattened copper pipe thing behind a hole then welding the hole together without the weld sticking to it. On aluminium use a flat steel piece behind instead.
4: Steering wheel puller.
5: Modified puller to pull the steering column thingy.