The ones I don't want to forget:
Lettery Factorius = Letter Factory
grink = drink
magic friends = imaginary friends
Cheesus = Jesus (always said as if at a revival, arms raised)
Sunnabrella = Cinderella
Jam = Jan
baff = bath
pannies = undies
trousers = pants
nosowee =nursery
I fink so = I think so
moinkey = monkey
bashrum = bathroom
stoopit = stupid
udder = other
And a dozen others I'll probably remember just as soon as I hit Publish Post.