i heard a couple of good ones on the radio at about 4.30 am this morning
this one certainly raised a titter
we the undersigned petition the pm to place a ban on the deputy pm eating pies.
can't remember the others (well it was extremely early)
but one i found was : we the undersigned blah blah petition to pass legislation to make cold calling illegal
was very surprised at the lack of signatures though
take a look at some of these for yourselves
http://petitions.pm.gov.uk/list/open?cat=760