Various merchants via eBay discount a selection of new and open-box unlocked phones, with prices starting from $49.99. (Prices are as marked.) Plus, these orders qualify for free shipping.

Buy Now

A couple of best bets:
-- Unlocked Sony Xperia E GSM Android Smartphone for $59.99 (low by $10)
-- Open-box Unlocked Samsung Galaxy S3 16GB 4G Smartphone for $109.99 (pictured, $290 off)

Note: Check individual product pages for warranty information on open-box items.