The little Wonderbars can be very effective you can jamb or hammer them in somewhere and then stand on them with your boots. They can be bent almost straight if you put enough pressure on them. Even if you can only catch one side of the claw it will still take that kind of punishment for a while without breaking. I have seen a 200lbs guy stand on one bending it flat to the floor many times. They can and will be broken this way sooner or later but are cheap to replace and can get into places nothing else can.
I carry a 24-inch Ti Bar in my truck a 24-inch steel bar in my car and keep two 36-inch bars and a 48-inch bar around the house. My tool bag in the truck usually has several sized smallish bars or hive tools etc. that come in handy.