I simply removed the neck from the original and placed a new top on it that the camera hooks to. Here is the webcam I used, but most should work just fine: https://www.amazon.com/gp/product/B082CJPNB5/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

Here is the original model as well:

https://www.printables.com/model/655656-wall-e-print-in-place-articulated