How about a contest where people get an existing moderately- to large-sized script
and try to make it as short as possible.
Say, if I get script which is 300 lines long and am able to reduce that
down to 50 (not very likely ;), I get let's say 25 points (300-50/10).
It's a little a sketchy and perhaps vague too, but I think you'll
get it.
Just my .02 Euro