I just got my IV-17 Four Letter Word generator.  It has a dictionary of 5,400 words including common acronyms and a few proper nouns too.  For those of you keeping this at your office, it even has a word filter to prevent offensive words from being shown.  Be sure to check out the video and photos below.  Learn more here.

It also functions as a clock featuring both 12 and 24 hour modes.  Once per minute, instead of displaying a word, it shows the time in HHMM format.