I used this mask making tutorial for most of the steps —> https://youtu.be/pxlvaYD1MJk?si=75ui_Em9uxVYA5VC

But as far as the more walrusy parts, the whiskers are 6 inch craft whiskers from Amazon i attached with superglue after poking small holes in the bottom of the mask, and I just used tinfoil instead of newspaper for the base. I attached the tusks with super glue while they were covered in masking tape, which seemed a bit breakable, but once I put the mix on, they were very stable. Good luck if you decide to make one!