Junior Merino, better known as The Liquid Chef (646-342-8302; theliquidchefinc.com), can design a cocktail to suit an event's theme and even hold a mixology seminar for guests who want to make more interesting blends than rum and Coke. Here's the recipe for the drink shown:

Banana-Peanut Batida
1/2 banana
1 1/4 oz condensed milk
1 1/2 oz Castries Rum Peanut Creme
1 1/2 oz Leblon Cachaca (Brazilian alcohol made of fermented sugar cane juice)
1 oz Orange Juice
1 1/2 cups of ice

Run all the ingredients in a blender for 20 seconds and serve in a tall glass. Garnish with powdered cinnamon.