At least, until my eyes fell upon a large case. Standing up against one of the walls, half hidden behind an overturned locker. Its metal shined like new, despite its dark and dreary surroundings. But it wasn’t the state of the box which drew my attention properly. It was the marking on it. A large, flowing, blue R had been imprinted upon its side.
(...)
It was locked, that wasn’t surprising. What was more surprising was the lock didn’t look like any I had ever seen before. A key-pad like the ones used on a terminal and a set of green display values were all the sign of how you would open it.
(...)
Carefully and slowly I nudged the top open. The interior of the box was lined with crushed velvet, stained dark red like wine. The center of the box was filled with a long tube, a rocket launcher by the look of it, like the one which the raider had been carrying. But this one was different. It was masterfully constructed, the metal shining like new, a pearl handle sitting as its firing mechanism and tiny gems embedded into the status monitoring devices. A small sight extending from one side. Along one side in flowing text like that on the outside of the box, but written in gold, was a name. Tom.
(...)
A small slip of paper fell from the box as I stared at the weapon, drifting down to land atop it just in my vision. Without much thought I wrapped it in my magic and unfolded it, curious to what might be written within. Flowing writing graced the page, beautiful and elegant. A style which part of my mind recognized instantly.

Dearest Twilight Sparkle,

I did as you requested and helped those poor boys in your lab with the finishing touches on this weapon. I do hope it lives up to your expectations. I just couldn’t leave the design alone. Steel and blinking lights? Who ever designed these crimes against proper fashion? This one at least will be presentable. I’m certain you will want to examine the results before sending this on to be reproduced by Applejack’s, ugh, ‘employees’. We should meet again soon, it feels like it’s been ages since we talked last!

- Rarity