She moves slowly and quietly away from her chair, though the sounds of yelling mean she could probably run through the place and still not get heard. She turns the corner directly from the Orb into the room with all the food, and spotting an empty can picks it up.
The mare then carves the runes into the side of the can. She's about to enchant it, but realizes she should probably do it somewhere a bit more hidden since the empowerment of the runes creates a flash of light.
She taps the can with the horn-like scepter, and the runes start glowing softly. The mare isn't aware if anything about the can has changed however. It just looks like a piece of slightly glowing trash now. It doesn't glow like the bullet with the sun runes on it did, but it isn't doing much else either.