El's friend, Mia Williamson, took to Twitter on Sunday to explain that, after a couple of hours at the event, Eleanor raced over to explain that "someone had spilt red wine down her" front.
The accident had left a large splash of red across El's top, and a lengthy spill down her right leg.
But according to the resourceful El, it had been "no problem" at all.
With some help from her work mates and a hand dryer in the public toilet, El gathered as much red wine as she could, and got to work.
"Got some more red wine and fixed it and I think we've just made a new product to Pretty Little Things festival range," Mia wrote on Twitter.
El stripped down while her friends splashed her entire jumpsuit with extra red wine in the bathroom sink, creating an incredible red tie dyed pattern.
"I don't know what part of my brain told me this was the reasonable solution," El joked later online.
According to El, she sat "fully naked in the toilet" while her friends created the masterpiece.
"I spent a looooong time under the hand dryer, and we had an open bar all day so there was no shortage of wine," she said.
She issued a call-out to Pretty Little Things to "get us on the design team asap".
The red wine stained jumpsuit attracted more than 122K likes and 11K retweets, with people claiming the group's fix was "brilliant".
"I actually can't get over this. This is ART gals," one woman wrote.
Another agreed, stating: "Honestly looks like apiece of art. It's a masterpiece and you wouldn't tell the difference if it was designer or not."
Others claimed El would have smelt like "a right alcoholic" after her bathroom art project was complete.
But El claimed it was "nothing a bit of perfume and good sense of humour can't sort out".
"Donatella Versace, eat (your) heart out," she wrote, referring to her new found fashion design skills.
Even Pretty Little Things got involved, posting on their Twitter page: "Safe to say that wasn't a 'pour' decision'."
