Ebay offers Open-Box Apple Magic Keyboard 2 Rechargable Wireless Bluetooth Silver - A1644 (MLA22LL/A) for $74.97 (orig. $99) with free shipping.

Product Description:
This Apple Keyboard has been cleaned and tested to be 100% fully functional. It is in EXCELLENT Grade A 9+/10 cosmetic condition showing only extremely light signs of wear from handling.This device uses Bluetooth and has a rechargeable battery. Premium Certified charging cable is included. Original packaging is not included.