Ok I just heard this and had to share.
On Halloween night at 8pm there will be a Naked Pumpkin Run along the sea wall between Beach Ave and Yaletown. This event people wear a carved pumpkin over their heads and run about 1 mile naked. Supposedly this event started in Boulder Colorado [wiki] years ago and has expanded. Hmmm they must be liberal minded Americans!
Hmmm I might just have to go check it out as it will end in my neighbourhood! 
EDIT: Boulder Colorado has posted up their pictures at the following link: http://web.dailycamera.com/soundslides/1101pumpkin/
Yes, hehe, its funny that you said that people are liberal minded americans. Some say that Boulder is a completely different place when compared to Colorado and therefore call it the Republic of Boulder! So I just ran the pumpkin run in Boulder! Thas awesome that you guys are doing this in Canada! I came across your site using google.
Danielle, you are a VERY brave person!!! I don’t know how you guys do it, but I’m sure you all had fun and I hope you didn’t get too cold or not!
well, you are running so fast and have all this adrenaline, it doesn’t matter if you are numb and cold.
HAHAHA!!! This is true!
Alas I didn’t attend the event here in Vancouver. I got my comfy clothes on and didn’t want to venture out in the cold last night.
I ran in the naked pumpkin run here in boulder too. You should check out their website, on the home page there is a link to a slide show of this year’s run. It was chilly but absolutely fabulous!
It’s amazing what you can find when you google a person’s name and location! And it doesn’t hurt to know they did a blog entry on the naked pumpkin run either!
Hi hi hi! I can’t believe I didn’t know you had a blog!!
Was great to see you tonight!
xoxo
Andrea, always a pleasure!!! I’ve added your lovely blog link to my links!