I'm looking for a 10 lb. square/rectangle/slab of either dark or milk chocolate. They used to come with a little chisel to hack off pieces. These were popular at parties a few years back, and I would like to surprise someone with one of these. The only problem is, I've called all over town with no success. Online, the few that are available end up being approx. $100 and won't ship in time (I need to have it by Friday). Ghirardelli used to have them, however, not any more. Any suggestions from my fellow foodies?