Amazon with Design Skin is taking 50% or 70% off select cases for Apple iPhone 12 mini / 12 / 12 Pro / 11 Pro and more and select cases for Samsung Galaxy S20 / S20 Plus / S20 Ultra with code DSKDEC50 or DSKDEC70 at checkout. Shipping is free with Prime membership or on purchases $25 or more.

Some examples:

Design Skin Slider Wallet Cover for 5.4" iPhone 12 mini for $9.99 w/ code DSKDEC50

Design Skin Slider Wallet Cover for 6.1" iPhone 12 / 12 Pro for $8.99 to $9.99 w/ code DSKDEC50

Design Skin Corner Cushion Bumper Case for iPhone 11 Pro for $6 w/ code DSKDEC70

DesignSkin Embroidery Stripe Slim Case for iPhone X for $5.10 w/ code DSKDEC70

DesignSkin Sliding Card Holder Case for Galaxy S20 Plus for $6 w/ code DSKDEC70

DesignSkin Sliding Card Holder Case for Galaxy Note 10 for $6 w/ code DSKDEC70