3Doodler's 3D printing pens are a lot of fun, and with models already available for hobbyists and kids, they've already proved pretty popular, with more 750,000 units shipping since the first device ...
When I was a kid, I was just excited they made pens that allowed me to write in glitter or in silver ink. But kids these days have pens that write actual stuff you can eat. Via Foodbeast, we’ve just ...