How to Make the Raspberry Pi Zero W into a Usb Rubber Ducky?

I have recently got a raspberry pi zero w. I did this to try and use its USB slave functionality and do things like HID attacks and grab cookies and such with poison tap. I cannot, no matter how hard i try, get duck berry pi to work. I would be very grateful if someone could make a guide on how to do it, or provide an image that I could use. Thanks in advance, m4r10