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saoi_jp - 11:37 pm on Dec 7, 2004 (gmt 0)
What's more interesting, if you're into logos, is that in other countries (Japan, for example), their logos show local holidays with local holiday images. If your store develops a reputation for celebrating via logo, you may get additional attention. The more niche your site, the more specialist/obscure you could make it. There's also the whole "April Fool" hoax tradition, but this is tangental to the topic, isn't it.
I'm sure nearly everyone realizes that Google gets into holiday moods by altering their logo. I'm using the word holiday to mean the whole range of special occasions throughout the year.