The first photo is the lower prism complex which is at a child's height, and has 42 prisms each made with three 12x2" mirrors (cut from scrap/discards). You are seeing Frank, the Footlocker employee, who was very supportive of my Flytrap piece last year. His iconic Footlocker stripes looked extra cool in the prisms.
The second photo is looking at the University Mall banner thru the upper prism complex (adult height) with 12 12x3" prisms.
The prisms are housed in discarded foam coolers with applied fiberglass and cement to make each piece durable, finished, and suitable for stacking/support of the mirrors. There are pvc sections within each so they can be attached together and to the cafe table base (perfectly good, which my Dad rescued from a dumpster).
Please go check out this exhibit, which will run from April -August. Plenty of time, no excuse to miss rethinking about the items in your garbage can....