I dont think a raised vegetable bed is complete without hoops. They provide a neat, removable/interchangeable framework for:plastic sheeting to create greenhouse conditions for germinating seedlin. - Our Secret Garden
Garden Tips ~ Use Muffin Tin to Create Perfectly Spaced Holes for Planting Garden pm · 10 comments by Sarah A Thrifty Mom Garden Tip on planting seeds, use a muffin pan to press holes into your dirt to form perfectly spaced holes for planting
For a more attractive layout, a U-shaped raised garden bed provides all the convenience and functionality of a typical garden bed but with added advantages like increased yields and fewer pest. Check out more information via mydailyrandomness.
Lattice and cheap PVC pipe from the hardware store - would work for displaying so many different things. I like the idea of inserting rods into the ground and placing the pipe over it for outdoor display.