This doesn't include the one nostr band uses :)
https://image.nostr.build/76ff725c44b9aa17d7937ff54918c851bb1150afea17f96a52840eb4dad2a5e0.jpg I remember this conversation ages ago. Maybe under the hashtag #nostrlogo or something. The ostrich silhouette one seems most used, but yeah nothing is 'official' but it does seem to have won. I think I like that one the least, maybe lol