Summary by Thingiverse user and designer of the model Swarmtek:
I wanted my Goose to be able to stand while holding larger objects so created this quick base.
Two options: One with the model in the center and one offset. Both seem to work well for keeping the Goose standing.
The feet should snugly fit the cutouts but that may depend on how calibrated your printer is. I used super glue to mount the goose to the stand.
EDIT by me: I wanted a base for my https://www.printables.com/model/7503-goose-from-untitled-goose-game/comments goose and I liked this one by Thingiverse user Swarmtek which has the indents for the feet. Reuploaded to printables using same License.
The user re-uploaded this model. The user is not the original author of the model.