Same as most small time charity events, drives, blahblahblah, you see people plugging, does my head in.
Basically they fancy doing something for free, so they say they doing it for charity, means everyones muggy donations pays for em to do it for nothing, and then whatevers left they "may" give to charity.
Im gonna do the fucking Gumball one of these days for charity, every other clown seems to do these sorta things for free by giving it the charidy guilt trip...