Image imported from derpibooru 
Original Description:
 
With Fluttershy, Applejack, and Twilight permanently incarcerated, Equestria’s new rulers turned their attention to Rainbow Dash, who’s fate was to be the most unique among the Bearers: after being permanently sealed into a Securu sack, and then a full-head gas mask, she was tethered to a balloon and set free to float through Equestria’s skies. Spells prevent the balloon and its cables from breaking, as well as magically concealing both it and its passenger from anyone flying by.
 
With the sack taking care of all her physical needs, Dash will spend the rest of her life drifting through a prison without bars or walls, watching thousands of sunrises, sunsets, storms, and seas of clouds.
 

 
My apologies for the rather poor blending of the cables and the sack; I couldn’t get it to look good no matter what I did. Oh well.