Theme ideas
International eats — There are two ways to do this: let the host put together a feast consisting of foods from the foreign country of their choice, or assign a country, and have each guest bring a dish from that country’s cuisine
Hometown eats — The host cooks specialties from whatever area of the country/world they might have grown up – great for getting a taste of authentic regional specialties.
Experimental food night -- Warning: for adventurous eaters only … assign each guest an ingredient type – e.g. vegetable, starch, meat, fruit, etc. – and come up with a menu using whatever you happen to end up with.

Wine club — It’s a good idea to a decide on a general theme for each wine gathering. Do Cabernet Sauvignons one month, Shirazes the next, Rieslings another; or do your wine tasting by region, concentrating on California reds one month, New Zealand whites another, Spanish wines the next. Hosts choose a given gathering’s theme, provide glasses and light munchies, and guests each bring a bottle of wine that fits the theme.

Cocktails night — can be organized by concentrating on a specific liquor each month, or by exploring classic cocktails and their variations. The host provides the base liquor(s), glassware, and equipment, and each guest arrives with a cocktail recipe that they’re interested in trying, along with any specialty ingredients required.