The monster and is accompanied by a group of pirates representing global warming (well read the Wikipedia article it describes how pirates or rather the lack thereof cause global warming). I was using the dragonfly which allowed me to make the approximately two-mile parade without requiring someone to push me or totally wearing myself out.
The parade always starts with a collection of nude bicyclists. This is an unofficial and not sanctioned but highly loved section of the parade.
The by cyclists are followed by a very eclectic collection of floats. The flying spaghetti monster is of course one of such a collection. This year, because Washington state has legalized gay marriage, there was a wedding cake float featuring a number of same-sex couples.
There was also a giant spider, a Dragon made of plastic garbage and numerous other floats.