I like this a lot, it's very bare yet has a lot of shapes and interesting coonections.
Also on another brain-wave, maybe you could adapt these 5 minute speed builds into a supplement for your micro space rules?
"Time takes a cigarette, puts it in your mouth
You pull on your finger, then another finger, then your cigarette
The wall-to-wall is calling, it lingers, then you forget
Ohhh how how how, you're a rock n roll suicide"