Seeing Urby's Avatar gave me an idea, not sure if anything like this has been done on the site before, but thought it would be a fun little game. Basically, guess the entity being referenced based on the images. Hell, create your own representations of any entity you wish and we'll try to guess them.
Mine's easy. "Info_Player_Start"
http://www.moddb.com/members/half-rats/images/stupit#imagebox