I originally had a clock I picked up at the Winnipeg Fringe Festival Market made out of an old film reel. It broke however, and by the time I got around to getting the pieces to fix it, I couldn't find where I had put the clock...so I used the pieces to make a new clock out of an ice cream pail lid.

Basically I just sharpie'd some numbers onto an ice cream container lid and punched a hole for the clock hands to go through.