Maybe it was just me, but one of the first thoughts I had was "how could I use those with SFB/C?"
Those gadgets are simply amazing. I can see pretty much anyone of any age using them, from tiny toddler's stacking them (as shown) to grown old people playing dominos in the old folks' home. Heck, even multiple choice exams for students, tic-tac-toe... Assuming a decent capacity, you could load songs onto a handful of them and "dump" them into a "player" block (perhaps attatched to a stereo) just before your party - where others can bring their own and so the same, so the music stays fresh throughout the night... There isn't an emoticon that sufficiently covers how very awsome these are.
heh... one more possibility -> 12 blocks could net you 12 digi-roses for V-tine's Day...
Czar "I want! I want!" Mohab