Edit - updated another charger after the last one sold out.
German ebay account required. You might also need a web browser that can translate German e.g. Chrome.
Currently there is a promo sale for 5€ off selected products with no minimum spend (ebay gift cards don't work). Most of the stuff that would have been free are gone though they will not be free for us due to Gerry tax.
There are still some wireless chargers that are going for cheap.
Also handy for those with the Xiaomi M365 scooter are these mirrors for 4.65€ (~A$7.37).