Had a look round for a grinds bin, came across this deal (https://www.ozbargain.com.au/node/116575). Seems most places are anywhere between $30-$50. Didn't have a massive look round, but from what i can tell its a good price for a coffee grind bin.
It was $2 flat postage to Tasmania, it appears to be $10 to some other areas
Also have no idea how many they have in stock.
$21 for a piece of plastic for waste? Kidding right? Can't you make one from a used milo tin and a long bolt or something?