Amazon offers its Prime members the Sharpie Accent Pocket-Style Highlighter 12-Pack, model no. 27145, for $4.49 with free shipping. (Non-members can spend $25 or more for free shipping; otherwise shipping adds $5.58.) That's the lowest total price we could find by $3.

Also available for Prime members is this Sanford Mr. Sketch Assorted Scent Marker 12-Pack for $4.49 with free shipping. That's a price low by $7.

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.