the one on the left is really that nice soft green. As you can see, the birds’ background is still beige. I tried soaking it longer, microwaving it…I suspect it’s pure polyester, because it’s just a little less pink than before.
and while the dye was out, I had read that you can dye plastic buttons, so I grabbed a handful of loose ones from the bottom of the jar of whites. They’re a random mix of plastics, no glass or mother of pearl. I microwaved them in dye for 3 minutes.
WOW! Thanks for sharing all your results! It looks like a couple of those prints are going to work quite a bit better for you. What a fun experiment with the buttons!