I know I saw one free somewhere. This one I found, but you have to purchase the pattern:
http://quiltingdigest.com/this-quilt...-use-of-scraps It is called Exploding Star by Sue Harvey.
https://thequiltshow.com/see-quilts/...exploding-star It looks like it is in many books. I know I saw one like it on a tutorial sometime this year, but can't remember who did it. Not sure this is the same star you got your idea from, but close.