2pk Lens-Shaped Coffee Mugs for $11.70 after coupon

Coupon code SALE3 drops 10% off the price of lens-shaped coffee mugs at Groupon Goods. The 2-pack goes for $13 before coupon, with the coupon dropping it to $11.70. The 1-packs go for $8, with the coupons dropping them to $7.20.

Free shipping with pre-coupon orders of $34.99 or higher, so you may want to combine these with something else at Groupon if you want to get free shipping. Or you can sign up for their 90-day Prime-like prepaid free shipping service for $15 and get free shipping without the $34.99+ prerequisite (on eligible items sold and shipped by Groupon itself, not 3rd-party sellers).

The coupon expires Tuesday night (10/31/17).