Print with the back of the pyramid to the print bed. It fits Elmers-sized glue sticks pretty snugly, so upscale the model if you need it to hold bigger glue sticks. Print with relatively high infill. Also, stringing would be a nightmare here, so probably try to avoid that as much as possible (my filament was too wet so there's a lot of stringing in the pictures).
The author marked this model as their own original creation.