Hi all,

I realize this is way off topic, but I'm hoping that the collective wisdom
here might stray into the required area of expertise...

I need to create a thin sheet of ice (.0125"-ish) on a plywood ramp
approximately 12" wide and 60" long, and I need to do it quickly; no longer
than 10 minutes. I can't build anything substantial into the ramp (IOW, no
refrigeration coils under the ramp), but anything else might be feasible.
Dry ice and water? I've heard some fire extinguishers could be used to
freeze water? Any suggestions?

Peter