captain arjun writes:
In terms of size and shape, the Mammupach looks close enough to the BRF model, but I had to make the ears bigger to make the match even better. The socket on the forehead was also puttied over. (Unfortunately the greenstuff I use is off-white in colour, and I had to darken the photos to increase the contrast.)
I decided to fit on only one pair of tusks, and puttied over the other pair of sockets.