The Cole-Bar Hammer is a multifunction wrecking bar on Kickster ($65 gets you an earlybird tool, with shipping). It unfolds and locks into place to serve as a crowbar; it also can be used as a hammer and as an angle-measurement tool, and it has a lovely, brutal elegance:
The Cole-Bar Hammer is essentially a hammer... ...with a full crow bar built in! Using it's patented locking gear mechanism, the Cole-Bar can be opened and extended from 0-180 degrees and locked in place at 15 degree increments. The only hammer in the world that turns into a full crow-bar! A patented gear/ratchet system that locks into place at every click! Further more, the Cole-Bar can be separated with a button release turning it into a demolition tool.
As mentioned previously, I love multifunction wrecking bars -- they're just the right blend of apocalyptic and functional. This looks like a promising addition to the genre.
The project looks exciting, but as with all Kickstarter projects, you should be prepared to get nothing for your money; the project founders' bios don't list any directly applicable manufacturing experience.