Bob put you up to this, didn't he?
No, this is the first I've heard of this. There's a place near my house that has some really nice robes. It's a clergy supply shop, so it's expensive, but, still, some of the robes are pretty cool. What color were you thinking? And get a couple of those hats, too! A mitre or a zuchhetti are always the perfect accessory for robes, I think.
This is a neat idea, Chris. I'm guessing you're an autumn, so stay away from blues.