Found the spikes I need under the Lions Gate bridge in North Van yesterday, thanks George for the tip.
Another stupid question; Where is a good local beach that has lots of driftwood? Went out to the beach along the Tsawwassen ferry terminal yesterday, but any of the driftwood there was very old and rotted for the most part. Doesn't look like anything has washed up there for awhile, which seems rather odd.
Looking for some thickish weathered board, or just something interesting looking. Kind of a "I'll know what I want when I see it" kind of thing.