I will be contributing to this cause soon. I went $400 over my Coachella budget and will be digging myself out of that for the next 2-3 weeks, but when I have a little spare cash I am definitely helping out.
Had a dream last night that I was at some festival in a fairgrounds with Stormy, Gramma, Nadine, and a few others from the board (can't remember who, though), and we were about to watch a Flaming Lips set. When the band took the stage all of the lights went black and on the big screen was a video of Wayne completely naked with the camera zooming in and out of his penis. The band started playing some weird down-chuned drone like noise and within 30 seconds the entire crowd had the most disgusting looks on their faces and everyone began to dispurse. Gramma looked at Nadine and was like, "SEE?? I fucking KNEW this is what was going to happen," to which she replied, "Just give it a chance! I swear we'll all 'get' it if we try!" But it just kept getting worse and worse and that fucking Wayne Coyne cock wouldn't go away, so we left along with the rest of the crowd and the Lips ended up playing to completely empty field for the rest of their set.
Overwhelm security personnel with cooperation and kindness. It takes their mind off of their job and puts them at ease. It has worked for me 100% of the time with them at every show and festival I've gone to.