Has anyone seen an interesting pattern for a knitted hat with a lining? I have in mind something like a plain navy or black watch cap, with a colorful inner lining, possibly just barely visible when the edge is turned up. (Anybody remember Wally Cox advertising brightly-colored underpants?) I'm basically looking for a cap within a cap, not the sort of double-sided knitting that you do by slipping every other stitch. It should also cover the ears and provide serious protection from the wind. Any ideas?