The contest only requires one thing-creativity! I know you have that in the bag so below I have made a contest similar to that in the magazine, The New Yorker. There is an entry for each of the five most popular (most watched) episodes of Season 1 of HIMYM. All you have to do is interpret pictures from the episodes and create the funniest and most provocative episode title you can think of. The titles presented as contest entries do not have to be anything like real titles so no point in looking at the original titles. There will be one consistent judge for all five winners, but you can also choose to support any entries you like by commenting under them.
Thank you and remember to have fun with this!