Clojure Turtle is a web-based environment akin to Logo): you write code to control a turtle that draws lines on a screen.
I used it while tutoring some people in Clojure, resulting in drawings like below:
Like Clojure Warrior, it "saves" the file content to the URL (for bookmarking or sharing) (code here).
...and it uses Clojurescript's self-compilation capacity (code here).
If I were to keep working on it...
...though, to be honest, the Logo turtle concept is very imperative and doesn't "fit" the way Clojure does things. Rather than stateful actions like pen-up, pen-down, etc, a Clojure-y would be more akin to returning a list of drawing instructions, or start-and-end coordinates for line segments.