I know from reading a few people trying to search out a 135mm x 12mm step down to 10mm QR rear axle to run their 12mm axled through axle rear wheels on their hardtails.
Rose bikes in germany are stocking the Reverse branded step down axle, not cheap at £28 odd quid but just the job and the other german stockists had none in stock. Mine arrived in a day and a half too.
As did my Mavic Crossmax SX 2012’s from bike-discount.de for an absolute steal price of £519 delivered, no one near that price in the UK.
Always good to share a source of what people ask for and also bargains for the rest of STW folk.