Heh, I had the same thing--only to good affect. I worried the tiny piece of wood I had would be lost in the bowl, but with the way the bowl shape magnifies things, it's perfect. Rule of thumb, anything you put in a rounded vessel should be at least 30% smaller than you expect it should be.
The other issue, of course, is that anything along the outside edge is invisible unless you get just the right viewing angle. I'm planning on digging thru my storage boxes tonight for a nice sturdy lazy susan to put my shrimp bowl on so I can safely rotate it to get better views.