1. Chocolate and wine pairing: Pair different types of chocolate with different types of wine to create a unique and delicious experience.
2. Blind chocolate tasting: Have participants taste different chocolates without knowing the brand or type, and then have them guess which chocolate is which.
3. Chocolate and cheese pairing: Pair different types of chocolate with different types of cheese to create a unique and delicious experience.
4. Chocolate and coffee pairing: Pair different types of chocolate with different types of coffee to create a unique and delicious experience.
5. Chocolate and beer pairing: Pair different types of chocolate with different types of beer to create a unique and delicious experience.
6. Chocolate fondue: Have participants dip different types of fruits, cookies, and pretzels into melted chocolate fondue.
7. Chocolate truffle making class: Have a chocolatier teach participants how to make truffles and let them make their own to take home.
8. Chocolate mystery box : Have a blindfolded taste test with a selection of chocolates that are placed in a mystery box, the participants have to guess the ingredients of the chocolate.
9. Chocolate and Spice pairing: Pair different types of chocolate with different types of spices to create a unique and delicious experience.
10. Chocolate and Herb pairing: Pair different types of chocolate with different types of herbs to create a unique and delicious experience.

Remember that to make the event more fun, you can add games, quizzes and prizes. And remember to provide a variety of chocolates, including dark, milk and white chocolate to cater to all tastes.