My stupid name game

I play this head game with people's names all the time. The rules are simple, switch the first consonant sound of the person's first name with the first consonant sound of their last name.
For example: for the name Fun Paul; I'd use Pun Faul.
Let's do some more(I'll grab a few from whatever's on my browser):
Haris Pilton
Shnuce Breier
Agberto Lonzonles
Donney Jepp
Tonald Drump
It can be fun form of self amusement.
I must have learned this from all those issues of Mad magazine I read as a kid.