Murata's Four Seasons of Bonsai has a gorgeous clump growing in a shallow pot of water -- but this requires a high level of care! I'm afraid they may not do well without some serious chilling in winter; you may have to let the bulbs go dormant by holding off watering in fall and then stashing them in the fridge for a couple of months, otherwise they will eventually go downhill.

My little pot stayed outside all winter, but came back just fine; I'm hoping to find a decent bonsai-style pot for it.

For five bucks, it's worth the experiment!

Jim