In late 2014 and early 2015 I was in the process of slowly moving from Darwin to Sydney - on my weekly Friday night QF redeye I checked in all manner of things - framed paintings (albeit in a bicycle box), a desk, a dining table, 5 dining chairs. All were wrapped in odd boxes and packing tape. Never had any trouble (but plenty of strange looks).
I had to laugh when the checkin agent said to me one Friday night 'there's a run on chairs obviously - some bloke checked in a chair last week' to which I responded 'ohhh no that was probably me'.
My crowing achievement was picking the desk up off the belt in Sydney (it was at least 6ft long), carrying it down to the train station, getting off at Wynyard, walking to the bus stop on York St and then negotiating with the bus driver to let me take it on the 610 bus down the M2.