Electronic Massage Pen Metal Material Vibration Massage Ball Pens Multi-functional Electronic Ballpoint Pens With Mini Motor - Ballpoint Pens - AliExpress
Dizzy Gels -Battery Operated Fun Vibrating Gel Pens for Writing Drawing- Pink - Walmart.com
Satin Chrome Silver Brass Ballpoint Pen with Chrome Silver Parts and Massage Vibrating Head on Top Barrel
Vibrating pen makes it easier for Parkinson's patients to write