For Halloween, you might want to consider this really cool DIY that shows you how to make skull graveyard fence out of PVC pipes. Even better, replace the top with something else and you can keep using it as a fence.
Our nice, quiet graveyard was already full, so we wanted to keep visiting trick-or-treaters out. In years past, we cobbled up a makeshift fence out of long wooden stakes and purple lights strung between them. This was effective, but tacky. In 2000, we decided to build the ever-popular fake fence out of PVC pipe.