This idea takes some of the most valuable and high-surface-area materials and reconditions & joins them to give a new lease of life; and another; and another.
In public gyms, exercise equipment degrades.
This degradation is largely from the surface contact on handles, seats and foot-plates.
Nike waste material can be combined and re-applied in order to refurbish this equipment.
The skill required would be in joining irregular shapes to fulfil object requirements, but treatment shouldn't be overly complicated.
This would be delivered as a service. Once the items have reached the end of their life, they can be replaced. The newly reclaimed (old) material can then be used for less quality-driven uses; such as punch bags or throwing balls.