Funny Panini, all the guys that took pottery when I was back in art school were the total hunks!! There were more guys then girls always in that art class, some of us took it just be sit by the hunky guys.
Are you meaning pillars? Yes, I can think of many that would be way cool.
How about something with a leaf pattern winding up your support, that always works nice in wedding cakes. Not too heavy with leafs. That could be done in all white or pale green glaze. even a simple pattern embossed into your clay could look great, then wraped into a pillar shape. If you fire them hollow you can insert your own wilton pillars into them to give real support so your pottery is a 'cover' over them.
Even something more contempory would be very neat. What about long triangles or a ball shape, like you see with contmepory pastry plating.
I watched the food championship this weekend on cable. (I can't think of what it's called, it's in France ....d'or) Well my point is the chefs there had the MOST FABULOUS platters. Now they were metal but if you watch closely you'll see them set other tiered platters on those for height. They had great designs! Maybe if you could see that show you'd be inspired. Leafs and vines always work well with food.
Also could you design something to cover or go around some of the plastic or iron cake stands? To dress them up? Maybe your own fountain instead of the Wilton style ones?
"Bakers are born, not made. We are exacting people who delight in submitting ourselves to rules and formulas if it means achieving repeatable perfection", Rose Levy Beranbaum