Here are a couple things I just came across (via the Craft magazine site) that are now on my "to make" list. First, the Hallowig, which one woman apparently knitted for herself and her cat.
And I think this is a great idea: cross-stitched tetris fridge magnets (actually, these might not be cross-stitched after all, but a cross-stitched version would be very do-able) . I always liked cross-stitch, but decided that it wasn't very practical (how many framed cross-stitched pictures does a person need?). However, these magnets are not only practical, but they'd also match the tetris quilt I plan to make.