Mark the middle point on a piece of plywood about 10 inches from the top.
Screw a small scrap of wood onto the middle point. Drill a hole at the top of the wood stick the diameter of a pencil. Use a pencil in the whole to trace a semi circle onto the wood.
Cut off the traced edges of the semi circle.
Sand the plywood in preparation for painting. Apply paint to the wood and allow time for it to dry.
Cut wood to size for the shelves that glasses will sit on.
Apply numbers at the top of the plywood if desired for the upcoming year. Line up shelf to be level and mark where it will go.
Attach each shelf using wood screws.
Attach L-Brackets on the bottom of the plywood with a piece of wood so the display stands up. Attach balloons and other decor around the display as desired.