Any character can use Consumables on any character including on yourself. A prop is required for each Consumable Tag to meet the 360 Degree Illusion rule.
A single serving bottle is 1.5 to 5 inches in length, and can have only 1 Tag attached to it. A storage bottle is 6 inches in length and greater, and can have multiple Tags of the same type attached to it.
Represented by syringe pens, a syringe can have only 1 Tag attached to it.