Your Monchball was originally designed to help Peanut (a greedy little Frenchie) not choke on bully sticks. However, the patent pending Monchball also works great for other dried chew treats such Himalayan cheese sticks, pig and lamb ears, shark skin and other strong long lasting chews. We do not recommend you put wet food in your Monchball. It is 3D printed and the surface is not water tight. If you would like to drill a hole in dry long lasting chew treats yourself, you will need to use a 6.5mm to 7mm (0.255 - ¼ inch) drill bit (the treat post in the Monchball is 6mm (0.236 inches) in diameter). Just make sure the treat is strong enough that your dog can’t pull it out.