I only have the Amaretto which is delicious, and have tried a whole slew of them in coffee; vanilla, white chocolate, raspberry (those last 2 together in a latte are divine) peach is really good for italian sodas.. Actually I think all of them I tried are good in Italian soda!! And in coffee if you are one of those people (I live in Seattle, so it's either drink it or be blacklisted) You can flavor your "mock danish" with them too.
dulce de leche will be my next Divinci purchase.
Let us know if you think of creative ways to use your syrup!