Get Molly's help.

Let's be honest- the toilet paper mummy thing was kind of a reckless idea, and you'd put yourself in a really dumb position. If you asked Nadia for help here, she'd just look at your like an idiot and leave you to fend for yourself; Molly might laugh a bit, but she'd be willing to go along with the idea. Fishing your phone out of the pants you'd tossed aside, you send her a text to come help you with your costume. A minute or two later, you hear a knock at the door. When you open it, Molly's standing there, a bemused grin on her face as she see's your head poking out, wrapped in toilet paper as it is.

"Ten minutes to get changed, huh?" Molly says with a chuckle, "you spend the same amount of time thinking of what costume to wear?"

"The one I planned had some problems," you admit, "this is... Plan B."

"And if you brought me up here to tell you it looks good, I'm not sure I can help you."

"No, I just need help getting it wrapped," you say, and nod for her to come in, stepping back and pulling the door open a little wider. When Molly walks in and sees you, bare other than boxers and the toilet paper you managed to secure around your head and limbs, your clothes and backpack scattered across the floor, she puts in a half-way effort to not laugh in your face. One that lasts all of two seconds.

"Yeah, yeah," you say, "just give me a hand. I can't get it tight enough around my torso."

"Well, gee," Molly says, "if I'd known this is what you wanted me to do I'd have come up here quicker! Pass me some of the toilet paper." You hand her a roll and, still giggling, she gets to work wrapping you up nice and snug.