A cardigan or vest, with asymmetrical opening along the mid-Atlantic ridge. The back of the vest would be gray, since I think it would be insane to reproduce the entire globe; and the opening of the Atlantic works the best. And doubly geeky -- taking the vest off would involve further opening of the Atlantic ==> projection into the future of plate tectonics. I still want to do the plate tectonics shawl first, since the piecework will make it easier to fix or replace a part when I'm learning intarsia. This will be a good second project, though, since all of the colors will be in lines and it will be relatively easy to plan the colorwork.