If you put cherry syrup, generally used for flavoring your coffee, in your milk, it is surprisingly great.
Can confirm. A lot of coffee syrups are great in milk.
I used to get "Italian sodas", syrup, some cream, and seltzer water from time to time. Basically, an egg cream, but with more flavors available than chocolate.
@Mathias
Now I'm thinking about buying seltzer water.