Remember the Optimus and Bumblebee plushies from about 10 years ago that "transformed" between robot and vehicle mode?
Converting plushies have returned, but are a lot smaller and simpler as the gimmick is to clip them to things like luggage... although, this time there are five of them - Starscream, Soundwave and Hotrod join the usual Optimus and Bumblebee.
(yes, since these are Gen1, so Soundwave turns into a tape player)
They were US$6 in America (and found in Asia about 2 months ago), so if they come here, they will probably be about AU$10.