Hmm... Here are the results for Worldwide Pinhole Photo Day. I'm not sure which one I'll submit.
Tulips, outside, exposure: 2.5 secs
Clock base, inside, exp.: 15 secs
Clock face, inside, 16 secs.
Laundromat building, outside, 4-5 secs.
A million years ago I used to do this with a little paper camera I built. I'd load paper inside, instead of film, and concentrate on capturing motion. So now here I am with a dirty sensor.