Grip for DP2 Merrill

I'm getting the DP2 Merrill and I was thinking a grip would be a good thing for this 'brick'. Since Sigma doesn't make one (and Richard Franiac hasn't designed one for the DP2 M yet) I wondering if anyone had experimented with a grip that might work.

Thanks!

Peter

--
Life is an infinite series of moments called now. My job is to capture them.