Third hands
thingiverse
A slotted track that holds sliders that are printable on demand. Notch can hold myriad tools for use as third/fourth/fifth hands.
Download Model from thingiverse
With this file you will be able to print Third hands 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 Third hands.