This time around, I'm showing you planes marked in support of various causes or charities. A couple will be no mystery at all, but the others may be a bit of a challenge. Be aware that this entry almost certainly will be amended prior to publication of the answers, as I'm pretty sure I have another one or two in the archives somewhere. If and when it happens, revisions will be noted in the title. Enjoy!
As noted in the title, I've added some more, including one I hadn't remembered when I started. Good luck!