The original cantina bartender voice also makes me laugh.
“OI! We don’t serve their koind 'ea!”
“What?”
“Ya droids, they’ll have to wait oit-side, they don’t wantem 'ea.”
I love how genuinely confused and bewildered Luke sounds when he responds to him, it’s like he’s never seen an australian in his entire life.
Slightly off-thread, but I love the footage (Empire of Dreams?) where someone’s reading Yoda’s lines in a British accent to Luke when he’s about to take off for Bespin - “if you choose the quick and easy path you will find it’s all a big load of bollocks…” (I’m exaggerating for effect of course!)