Happy birthday Biscuit! So cute! Hope your day will be filled with special treats!
Have you tried the Kong line of toys? Milo isn't the most destructive toy chewer, but he is pretty good at it and the Kongs hold up (at least long enough for me to justify the price I paid for them)!! Try the flying saucer disc made by Kong. It unscrews in the middle and you can smear peanutbutter or insert treats inside and boy, does it keep Milo occupied for at least a good hour!