Thanks for the responses. The question was, of course, meant lightheartedly - I long ago embraced my inner Fred (using Fred definition III, i.e. form follows function and to heck with what anyone else thinks...). I just was surfing for some handlebar ideas yesterday, and I happened on several articles that said the combination of risers and bar ends is just "Not Done".
I just got this hybrid a few weeks ago, and have only had one chance to take it on a really good ride so far. I love the bike - it's an early 1990s Bianchi Advantage, with what I'd call a touring geometry and gearing, and in almost every respect, it's almost my ideal bike - lightish (mid 20s of pounds), good steel frame, relaxed geometry, great gearing for climbing, responsive... But I did notice that, after about an hour or so, I was looking for other hand positions. If this bar-end idea doesn't work, I'll probably put trekking bars on it.