This logo was developed for the Nerds' Club (NErdeST) of the students' residence (NEST) where I live during my University years. 

It features a D20 (DnD, anyone?), two red orbits (referring to sci-fi culture) and an integral (the majority of the guys are from a scientific field of study).

The four red icons are used on the posters advertising the events that are organized, so that other fellas can instantly identify the theme of the evening (from left to right: Magic the Gathering, videogames/LAN party, movie/TV series night, table games).