"You know," Rarity mused as she put another section of fabric through her sewing machine, "It's honestly for the best I found that scroll. I understand Sweetie Belle's intentions, and I must admit that the idea is intriguing…"
Rarity nodded to Rarity as she pinned pieces in place on the ponnequin. "Going back in time to before you got your cutie mark to see if you could change what you got?"
Rarity nodded. "Indeed. It's a fascinating idea, though more of a Twilight question."
A nod in return. "It is," commented Rarity as she stuck her head out from the closet. "And it is also most certainly not something young fillies should be experimenting with."
All three Rarities nodded in agreement.
A fourth Rarity trotted in, carrying a tray of fresh tea and biscuits. "Then it's fortunate that I took the scroll away from her and her friends. Disappointed as they were, it could only have ended poorly."
All four Rarities murmured their agreement as they got their tea.
They drank as one - then as one let out a pleased sigh.
"Perfectly made, Rarity."
"Why thank you, Rarity."
"My pleasure, Rarity."
And then they broke into amused giggles.
After they finished the short breather and started back on their work, there was a pause. Then one of them - the Rarity working on picking out the appropriate accent gems - spoke up. "Speaking of Twilight. Do you think we should have perhaps told her about the scroll?"
"Instead of using it for ourselves?" The one sewing paused to consider it. Then she shook her head. "No, I'm certain Twilight would agree that this is a responsible use of it."
The Rarity at the ponnequin nodded. "Completing these orders ahead of time is important. Hardly a frivolous use of such a powerful tool."
"Indeed," noted the fourth as she cleaned up the tea. "After all–"
"Many hooves make for light work," all four declared. And then laughed an identical laugh.