Entry #22 is awesome. Your designs for 14, 15, and 21 are neat, but feel a bit too close to Christian religious symbols (a bit cross-like). 20 is also cool, but 22 is by far my favorite from your set.
I look forward to seeing any other ideas you come up with.
Thanks for whipping up #71. I'm not sure I actually like your particular design with the orange in it. I think the original color scheme worked better for yours. I'd still like to see that on the side if you don't mind.