Thumb Score: +23

Amazon [amazon.com] has 6-Pack BIC 4 Color Pastel Barrel Multicolor Ballpoint Pens (Medium Point, 1.0 mm, Assorted Colors) for $5.11 – 5% when you check out via Subscribe & Save = $4.85.
Shipping is free with Prime or on $35+ orders.

Cashback
10% back with Prime Card Bonus [amazon.com] (click to check)
($4.37 after cashback)