Reese's Peanut Butter Cups.....now my favorite food item in the entire world. Not for me. But for Duck. Definitely makes the medicine go down.
3 mini cups + 1 cup chobby = no fuss medicine time
Now, he's still complaining a bit about it, but three little squirts (about 1/4 tsp each time) and he's done and off to eat his Reese's and drink his chobby.
(chobby is chocolate milk for those not fluent in "Duck-ese")