Back in 2017, before I discovered 365, I sometimes amused myself by creating photo scavenger hunts. I wrote things like "red car", "bird" and "sign" on slips of paper, then chose ten at random and made a list. Then I'd go for a walk or hop on a bus and see how many of them I could find and photograph. Even made this book from the results :)
(Note the reappearance of bulldog clip, holding one corner of the book to keep it open.)
That's really cool! I have done photographic Rainbow Walks, which is a kind of scavenger hunt (find an item in each colour of the rainbow during your walk and take its picture) but not one with randomly selected targets before.