What's a birthday cake without candles? Here's a special, and large Sonic candle to go on top of the cake...at some point in the 1990s. This too is from CA Reed, (as some other items are too) and it measures about 3 by 3 inches and is made of that fake wax stuff. The wick is likely on the top, and the base is wide on purpose to help it stick on the icing.