Week 3, woe is me

Factors working against me: 1. My own apathy.  I kept putting it off.  2. I was unexpectedly dragged along to a play Saturday night.  3.  When it came to a choice between working on my Steampunk Thing or sleeping, I chose to sleep.
Factors working for me: My parents finally decided to turn on the heat, so at least I didn't freeze this week.
Results: FAILURE.  As of Saturday midnight, this week's Thing of the Week was unfinished.

I think I ought to institute a punishment for every hour past the deadline (something that doesn't take too much time away from the next week's Thing).  Any suggestions?