Amazon offers its Amazon Prime members $5 off select Transformers: Dark of the Moon MechTech toys, as listed below. (To get the discount, click "Click this coupon" below the price.) With free shipping, each is at lowest-we-could-find prices by at least $6 (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $4.25.) The deals, with prices after coupon:

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.