A.D.
It's totally Britney Spears, but it worked for me: I used Strawberry Qwik for a week. I showed him the package and let him watch me make it, making a big deal over it being "bunny juice" (yeah, inside family joke for it). I never made it super sugary, but I made it good. Then once he was hooked, I weaned off the Qwik and pretty soon he was addicted to plain milk. Don't tell the authorities--I'll deny it!