‘Great idea: Turning art supply tests into standalone works of art’

via austinkleon:
I like these pieces from "Test Me," an exhibit by @chrisormitch (Chris Maddux) on display at the Wisconsin Institute for Discovery's Image Lab, the interdisciplinary work space run by @thenearsightedmonkey (Lynda Barry)
Let me know if you know of other artists who share pages of material tests into works of their own!
Update: @PGHomes points out the test prints of @strawberryluna: