Review (4/5): Sticky stuff! XD
The spirit gum held up through an entire LARP event with many battles and even taking a few hits directly to the side of the head. My ears never fell off.
Although, once I got home and removed them, the spirit gum remover didn't get rid of ALL of the excess. The backs of my real ears were still slightly sticky even after the remover and a shower. Though that stickiness did wear away over night.