Concept: “Five different 12" x 12" double-sided posters, each a different encounter idea/mini-adventure... Each is a stand-alone and, if I've done things right, will lead to a TPK or as close to one as possible.” 
Content: Five fatal mistakes for your next group of scvm.
Writing: Humorous and harrowing. With deadly accommodations for particularly resilient scvm. 
Art/design: Art-heavy poster layouts with detailed adventure text on the reverse side.
Usability: Clean and calculated for reading and reference.