VcallDirect via Amazon offers its Vcall 3D Printing Pen in Blue for $34.99. Coupon code "8BUPCHMV" cuts that to $24.49. With free shipping, that's $11 off list and the lowest price we could find. It features an LCD display, adjustable output speed, and adjustable temperatures. It includes three 1.75mm ABS filament samples. Deal ends December 25.