MyMemory UK- Kingston 8GB USB Flash Drive £4.98+£1.95 delivered (save 71%)
Price per unit of approx AU$7.90 + flat rate shipping
It gets cheaper if you buy more as it has a flat rate shipping of £1.95.
I thought Verbatim 32GB PinStripe Store'n'Go USB Flash Drive for £20.99 is a pretty awesome price too.
Link here: https://www.mymemory.co.uk/USB-Flash-Drives/Verbatim/Verbatim-32GB-PinStripe-Store%27n%27Go-USB-Flash-Drive
Decent prices if you are ok with the wait as delivery comes from the UK.