At 15 seconds long, this amateur video with minimal commentary is the funniest 9/11 tribute I have ever seen. I tried to find if this was already shared on the site, but couldn't find it.
Story: https://www.nj.com/news/2021/09/911-parade-float-in-indiana-featuring-smoking-twin-towers-sparks-outrage.html
9/11 Brazilian Carnival. All the samba clubs compete for the best depiction of the terrorist attack.