WDT Pen
thingiverse
It's a WDT tool shaped like a pen. The head can be redesigned to have differing amounts of needles or tines depending on a user's specific needs. The needles would have to be trimmed in order to fit properly.
Download Model from thingiverse
With this file you will be able to print WDT Pen with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on WDT Pen.