This story is a sequel to Twilight's Dollhouse

Thirty ponies remained trapped in plastic shells as Twilight’s dolls. Lyra left them behind without a second thought. She joins Scootaloo to help rescue them, lest they be trapped for eternity as the last of Twilight’s sanity slips away. . .

Scootaloo will have to get past thoughts of revenge and her anger. Lyra will have to move past her guilt of failure. Once they have learned the skills they will need to defend themselves they will set out to find the Dollhouse and rescue their friends.

Unfortunately, time waits for no pony.

Pre-readers / Editors: Selbi, Abcron, Jaestring, TypewriterError, Breath of Plagues

The newly coronated Princess Twilight suffers an abrupt tragedy. Having lost two loved ones, she begins to question her own mortality, and that of her friends.

AJ, Dash, Rarity, Pinkie, Fluttershy. . . they are just the beginning. Twilight will live for thousands of years, so every pony she cares about—every pony she will ever care about, will die.

She could barely handle the pain of one funeral, let alone the thought of hundreds of them. Twilight finds a clever way to ensure all of her friends never die. They can’t all be ageless alicorns, but they can all move into Twilight’s Dollhouse. Then they can be best friends forever.

Sequel: Twilight's Dollhouse 2
Fanmade Song: Twilight's Dollhouse

Source: Dreampaw
Editor: Gage of Grandiloquence, Breath of Plagues
Pre-read & Idea pony: TypeWriterError,
v1.1 Revised chapters 1-10 on May 1st 2013
--Pending a few more revisions, including ch. 14
Now on TV Tropes.