Saw these in my local IKEA (Richmond, VIC - now back open!) on sale from $5 down to $1. Dunno if available at other stores.
LILLHULT USB type C to USB cord, black/white 0.4 m - had a few boxes full still
LILLHULT Micro-USB to USB cord, black/white 0.4 m - had one box still
I can't find them on the AU website.
Links for the products on the UK website (FOR INFO ONLY!)