We recently had our Ariens zero-turn mower serviced at AE Outdoor Power in Clive, for an oil change & some other maintenance work.
As part of the service work, they replaced our blades because 2 were bent, but we forgot to tell them upfront we wanted to have a mulching kit installed instead! So AE Power took the OEM blades off, but because we'd already bought them, now we've got those, too.... so we're hoping to find someone who can use this brand-new set of standard 15" blades.
(actually, we did use them once, before realizing what had happened...)
A set of 3 retails for about $60 (non-OEM cost about $40), here is a listing on Amazon: