A gummy packaging machine can handle different shapes and sizes of gummies through the use of customized molds and feeding systems. The molds are designed to match the specific shape and size of the gummies being produced, ensuring that each gummy is properly formed and consistent in size. 

The feeding system of the machine is also designed to work with different shapes and sizes of gummies. Some machines use a belt or conveyor system to transport the gummies through the packaging process, while others use a hopper or vibratory feeder to move the gummies into the packaging area. 

Overall, the key to handling different shapes and sizes of gummies is to ensure that the machine is equipped with the appropriate molds and feeding system for your specific product. This will help to ensure that each gummy is properly formed and that the packaging process runs smoothly.