These are some blue and otherwise colored 'fairy rocks' that I found by a tree near a church. Some people like to think that they attract fairies and other little characters with their vibrancy.
Unfortunately I didn't get a picture of them from various angles as there were others around me and I didn't want to be the only weirdo documenting rocks. I don't think they'd understand its for something called "colorchallenge on Steemit".
I think these rocks have been here for a while.