Croc Pins
thingiverse
lots of croc pins put them in head first they should be poking out of the croc except for the Lego pins you put bottom of the pin on the top of the croc and if you don't understand you'll figure it out
Download Model from thingiverse
With this file you will be able to print Croc Pins 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 Croc Pins.