I'll post a topic and the next person to post has to post something that relates to the topic starting with a letter of the alphabet. To make this more difficult, We go in order starting from A. When someone posts something beginning with the letter Z, they also get to name the next topic and the person after them will post something relating to that topic beginning with the letter A.
Example:
Topic: Food
Person 1. Apple Person 2. Banana Person 3. Coconut
And so on....
Ok First topic is: Countries/continents of the world.