Earring card punch, plastic and "pewter" (zinc-based alloy), purple / black / grey, 3 x 2 x 1-3/4 inches for post and fishhook. Sold individually. - Fire Mountain Gems and Beads
Easy Earring Cards-Punch Kit – Easy Earring Cards
Easy Earring Leverback Punch for Cards DER051 - Etsy
Easy Earring Cards-Punch Kit – Easy Earring Cards
Amazon.com: Double Post Punch
DIY Earring Cards that won't break the bank! - Rings and ThingsRings and Things