More to explore:
bundt pan from thrift store, painted, filled with flowering plants for table with umbrella! The umbrella goes thru the hole in the bundt or angel food cake pan. Could also fill with cups holding utensils, condiments, other decor. Be sure to measure your umbrella first.
Bundt pan patio table flowerpot
Angel Food Cake Pan Flower Container for Patio table, or a Bundt pan would work too.
Patio tabletop planter made from an angel food cake pan (or bundt cake pan?) Umbrella pole fits through the hole in the center of the pan.