Was in BigW Stocklands Qld and saw that they had the Cygnett Zigbee Smart range on clearance for $15.
As per my previous post I really like the buttons, as they're large and tactile and the entire range presents itself to Home Assistant as Sonoff devices. Sadly already have some spares still from the last deal at $19.95 so don't need any more.
They don't appear on the BigW web site anymore, so it may involve some travelling or ringing around to obtain. Am assuming it's nation wide.
Good luck if you're searching for them.
Location required.
Stocklands has multiple shopping centres with BigW throughout Qld!