As one of its daily deals, Newegg offers the XYZprinting da Vinci 3D Pen, model no. 3N10XXUS00E, for $19.99 with free shipping. That's $5 under our mention from three weeks ago and tied with the best price we've seen. (It's a low now by $20.) It uses 1.75mm PLA filament and features a 0.8mm nozzle. Deal ends today.