Kuking via Amazon offers Prime members the Andake Mulberry Silk Sleep Eye Mask with Ear Plugs in Black for $7.88. Coupon code "BLACK550" drops it to $5.50. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.51.) That's $14 off list and the lowest total price we could find. It's made from 100% silk and has adjustable elastic straps. Deal ends October 31.