Vitality Gems are a magical marvel that have revolutionized medicine in Equestria. Their enchantment can keep a living being alive and healthy, without need of nourishment or water, without aches or atrophy… with the only caveat that the patient cannot move more than a few little wiggles. A perfect application for coma patients or those in full body casts…

But a few innovative and creative individuals have found other long term uses for them.

As Gilda here is perfectly demonstrating in this bird cage which is just a few sizes too small~