I want to do this for my hybrid. The current bars are shallow risers - hybrid bars, really. I would orient the riser so that, rather than raising the bar (much), it would bring it a tiny bit closer and maybe a little lower (compensating for the height lost by raising the quill). I would then mount the bar ends, which are long and have a fair amount of curve to them, so that the whole effect would almost be like trekking bars. I'd then cover the whole mess with the foam tubey stuff. I got the idea looking at what MrBeanz did for his wife's hybrid.
Does this violate all standards of cycling decency?