Then it hit me - how about a Flappy Bird clone that uses Glass's eye sensor for blink-to-flap awesomeness? Done.
BlinkyBird uses Glass's eye sensor - just double-blink to flap!
For now BlinkyBird is free.
UPDATE: Looks like Google made changes to the blink-detection code on Glass XE20.1 which breaks GlassyBird. I'll post an update here when I get time to fix.