Which sites have real Pixie Hollow secret codes

Well, I went on some cheat sites and entered the codes in the Pixie Hollow secret codes thing, and it said it wouldn't work because it wasn't a real code!
Here are some secret codes I have not tried yet:
317105
407501
106510
Revelry
Rose
Lily
Daisy
Ivy
Acorn
Twig
Leaf
471575
165488