I thought of a few more...

DS- thanks is 'qwenks' Don't ask me how that is supposed to sound like thanks, but that's how he says it, lol!!

DD has heaps, but I can only think of a few- when DS was born he was called 'Lummy' by her. His name is Liam. He's now 'Li-Li' or just 'Li'. I didn't think Liam was all that hard a name to say, but she still can't or wont say it!
She used to call oranges 'ongees'
Flowers were 'wowsers'