This blank is made by Tim Crowe from Turnt Pen Co. in the US. He manages an amazing amount of colour separation, swirls and a gorgeous combination of semitransparent, solid and pearlescent colours.
The pen will be made out of the exact blank seen in the pictures. However, the inside will be very very different than the outside. Like opening a treasure chest! These blanks are fairly large, so they allow for the full range of sizes we have.