Cardistry Pen Blank - White Bicycle - SierraCardistry Pen Blank White Bicycle Sierra From the studios of JohnU, these Cardistry pen blanks are made from real playing cards that have been artistically arranged on the pen tube, then cast in crystal clear resin. What a great and unique gift, and a great seller at shows! The Cardistry blanks come cast "in the round," making them a breeze to turn! And as with any pre tubed blank, we suggest using the sanding jig method of squaring these blanks, as