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eBay with Pro Beauty Equipment has the Derma Microneedle Face Skin Roller (0.2mm, 0.75mm, 1.00mm, 1.50mm, 2.00mm, or 3.00mm) for $3.74 with free shipping. Claims to stimulate collagen production and improve skin elasticity. Amazon has a similar 1.0mm Micro Needle Roller Skin Care Therapy Dermatology System for $8 with free shipping on $25+.
Amazon has the Mederma Advanced Scar Gel for $10 shipped