This weekend I picked up the most adorable cast-iron trivet in robin's egg blue from the Martha Stewart Collection at Macy's- super on sale. It is now my second favorite trivet, topped only by a hot plate-ish thing I picked up at a cooking store in Germany that pictures two plump sausages lying on a blue plaid table cloth. Other favorites:
Le Creuset's trivets are a little ornate for my taste, but the dune is more than classy enough for tabletop serving.
Here's the one I picked up at Macy's in Cobalt.
This trivet is made of adjustable ceramic "pearls" that can be manipulated to fit any number of hot objects.