Rebecca Z. (via email)

Slyeesooess for slices of something

Busserris for bus driver

Posta for post

Postaro Postariski postarrisse for posting a letter

Stampa for postage stamp

Orinjan for orange drink

There’s always the mispronunciations too, like
Televissio
Cabochino

I’m sure I’ll think of a few more. Coincidentally, my brother and I have created an A to Z of things mum says regularly in Greek that sound funny. Not incorrect but funny. Every time we hear a new one we add it to the list. I’m sure you will be inundated with suggestions .