Much as I love using stories and other texts as stimuli for P4C, pictures can also be brilliant.
Try finding some puzzling or provocative pictures. There are lots on the internet – here are a couple of sites I found in a quick search (sorry about all the clickbait!):
https://brightside.me/wonder-curiosities/23-puzzling-pictures-that-we-just-cant-explain-590460/
https://blazepress.com/2014/09/31-pictures-make-think-things-differently/
You can also use puzzling images as a stimulus for a creative thinking game, for example: In pairs, think of an explanation.
More about P4C stimuli
