What is your favourite Wikipedia image, I'll start with the

" Chaos magic ritual involving videoconferencing .JPG "

https://commons.wikimedia.org/wiki/File:Chaos_magic_ritual_involving_videoconferencing.JPG

@benjojo partial to the classic https://en.wikipedia.org/wiki/Static_electricity#/media/File:Cat_demonstrating_static_cling_with_styrofoam_peanuts.jpg

@benjojo While trying to find my favourite odd one I found the cow one. Haven't found to which page it originally belongs to.

https://en.wikipedia.org/wiki/Wikipedia:Unusual_articles

@benjojo image + caption combo (shame the Bernese Mountain Dogs "appreciating gardens" was removed)