On Amazon right now you can get this nice Norpro Stainless Steel Apple Corer with Plunger for just $10.35 – a 20% savings. I love the wide top to this, making it easier to core the apple.
This will ship free with Amazon Prime or qualifies for free Super Saver Shipping with a $35 purchase.
Note: Amazon prices and promotions can change at any time. The price(s) listed in this post is/are subject to change.