Tried this one last night to outrageous success ;D
Place the unpeeled garlic bulbs into a largeish container with a lid on. You then vigorously shake the container about like it's a cocktail shaker for around a minute. I did 250gms of bulbs last night in seconds. The result is that the skins get rubbed off by the friction inside the container - simply pick out the skins from the bulbs, voila!
Enjoy, no more using the side of a knife and pressing down, etc, etc.
Martin