Source and artist: https://facebook.com/avantgeek
Imgur comments: http://imgur.com/gallery/EyEzh
Stashed in: gifs, G4!, Cosplay!, Imgur!, Fast Food, DIY, Cosplay
Source of Taco Bell Dress commercial is the Sriracha Quesarito ad from Feb 2015:
AvantGeek made the dress herself from Taco Bell wrappers and sauce packets.
Tacos aside, she likes making paper dresses.
She also made an Imgur costume.
AvantGeek Taco Belle dress: