Goblets and Rhododendron

Which four of these match? I finished these yesterday and I have an order for four. Hmmmm.
The soul pot in the foreground contains a piece of rhododendron from a creek in Robbins, NC, just up the road. My daughter, Chelsea, inspired me to take a little canoe trip yesterday afternoon with her and her brother, Wil. The Rhododendron was blooming like crazy, images bouncing off the mirror-smooth water. It was a wonderful trip. We spotted four tiny ducks skimming across the creek ahead of us, their little feet splashing as they literally ran across the water.
Thanks, Chelsea.