This is fun. Apart from the humour in seeing faces in mundane objects, it’s a great way to train your photographic eye to see as well as look.
It’s all down to a basic human instinct to recognise patterns, wherever they appear. There’s even a word for it—pareidolia. Your humble scribe has joined the group, and has posted a few images to the pool. She will also continue to enjoy seeing faces, not portraits, in the world around her.