1: I don't machine sewed anything, its sewn with my bare hands
2: I glued the padding to the pigskin and turned the ugliest side against the bag of the veg.. then I used an awl, to penetrate the veg and the pigskin...
3: And yes you are right... normally I would too.... but for the dog intended it doesn't matter cause they really don't pull and thought it looked nice...
And thanks for making a comment, hope my answer helped!