I'm not going to search for it. Maybe there is, maybe there isn't. I'm sure your original point about it varying in different cultures is true. I do know that if I were volunteering to evaluate potentially-complicated applications for something, particularly something where the applicant clearly has something of obvious value to gain, and a lot of people with low-quality applications might just take a shot because why not, I'd want some sort of fee attached to it, but that's just me.