The Opener I created for this prompt.
Stanley Pines grinned at his compatriots as he showed them the final products of their labors for the last few weeks.
"Alright boys! Here she is, experiment #78!" With a flourish he stepped aside and revealed the deceptively nondescript looking carpet to one Fiddleford McGucket and one Stanford Pines.
"Just finished weaving her myself!" He said with some pride. Working a loom was hard- made all the harder by trying to weave electrons, gold and various other properties into an attractive looking carpet.
Stanley watched as his twin raised a brow, somewhat unimpressed.
"You made a carpet. You have a nutso dream after a marathon of black and white movies about some thief and binging on chilly fries, spend the next three weeks working in secret with Fidd's, have me running around to get you gold and thread and all you gotta show me is a carpet."
He paused a moment and rubbed his face, during which he shared a look with his smaller companion who gave an awkward smile.
"I don't know what I expected but it wasn't this."
Stanley began to frown and Fiddleford quickly cleared his throat, doing what he usually did to save a situation between the Pines twins.
"Ah- I'm sure there's more to it than that Stanford. Stanley, even though I helped with this you didn't give me all of the details. What exactly is this carpet supposed to do?" He gave an encouraging smile and played his cute, bookish looks for all they were worth to help boost his friend's ego.
The trick worked, Stanley gave a smile at the attention and regained some of his enthused energy.
"Well, Fiddleford-"Stan rolled at his eyes at his twin's passive aggressive jab to try and "exclude" him.
"The carpet works on a principle of electrons and energy." He went on, getting very technical and energized the more he explained his project. He even forgot he was mad at Stan half way through and motioned at him when the time called for it.
Stan had to admit he only barely understood everything, but what his brother said sounded legit. Not that that wasn't a surprise, he respected his twin's intelligence. After a good seven minutes Stanley wound down his explanation and finished with "- and so this carpet should, in theory, allow for individuals to swap bodies. Their consciousness moving to and switching with that of the nearest individual within the carpet's range of conductivity."
Fiddleford made a noise of astonishment, "You think it can do that?"
"Why would you make a carpet that can do that?" Asked Stan, interested now. This could lead to some money…
"Why not?" Said Stanley, as an answer to both of their inquiries.
Both stared at him silently for a moment, and then Fiddleford said, "We're the test subjects too, aren't we?"
"Yup!" Stanley grinned his mad scientist grin at them and placed his hands on his hips.
"So, ready to get started?"
"I'm going to regret this." Intoned Fiddleford dully.
And he did. The moment he realized he and Stan were shrinking instead of trading bodies as the electricity of the carpet crackled around them he felt the knives of regret and mortal fear stab through him. He helplessly watched his clothes billow around him until his glasses became too large for his face and fell off.
When the vertigo stopped he began to grope around for them, as he did so he heard a high pitched voice swear hard enough to make the Devil blush.
"Now that's not right." Came Stanley's dazed reply.
"You're fucking right it isn't!" Yelled the voice again, Fiddleford realized it was that of a small child.
He found his glasses and placed them on his face as best he could. His eyes widened in amazement as he watched a young brunette boy yell questions and expletives at Stanley as he stood in nothing but an over-sized white muscle shirt. A pile of clothes at his feet.
Fiddleford realized he was eye level with the lad, he was short but not that short. He looked down and saw that he was in a similar situation, his hands didn't even reach out of his shirt and jacket sleeves. In his stupor he brought them to his face and through the layers of fabric he felt the soft round cheeks of his face, plump and without any of the stubble he had this morning.
Reality dawned upon him.
"MOTHER OF MERCY STANLEY! WHAT IN THE FUCKING BLUE BLAZES HAPPENED?!"
Both of the Pines brothers looked over at the now young McGucket in shock, who had been silent until now. Their mouths were wide open in surprise; they had never heard their friend swear so blatantly before. After a moment Stanley managed to say,
"I think I made a small miscalculation."
"You think?!" He screeched back.