Based on my story from http://www.hentai-foundry.com/stories/user/luffy316/33029/Harley-Quinn-vs-The-Multiverse where Harley Quinn tampers with a portal and catfights alternates of herself. It's not based on any certain scene but wanted to capture the spirit of the chaos.
"Oh yea? Well same goes for me! I mean you!" Animated Harley slammed an elbow into Arkham Harley's mouth, sending her staggering back out of control. The more clownish Harley leapt onto her back, pulling her hair and clothes while Arkham Harley stumbling around, the two swapping frantic swings and curses. It wasn't until they ran into the control panel and bounced back that they froze, looking up at the whirling and glowing portal.
Another Harley appeared, this one quite different in her own right. There was the same wild makeup, of course. She wore jean shorts and stockings of a familiar color pattern to the others, but also a set of goggles and a World War II bomber jacket over a similarly patterned tube top. Bombshells Harley frowned and looked over her counterparts that were clambering over each other, staring at the new parallel.
"Okay, I don't know what kinda screwball machine that was, but I definitely ain't on the homefront." She looked around the room and scratched at one of her blonde pigtails. "Everything's too shiny. I musta got sucked into some trashy costume party."
"Hey, who you callin' trashy!" Animated Harley snapped. "At least my whoopee cushions ain't hanging out of my top like youse two!"
"What'd you say ta me?!" the pilot snapped, rolling up her sleeves as she approached. Tempers and stability were pretty universal among the multiverse of Harley Quinzelles.
"Did you just call my funbags 'whoopee cushions?" Arkham Harley added before getting another yank of her pigtails from the foe still on her back. She gave an angry yelp and caught her by the arm, biting into her hand. Animated Harley shrieked as she let go and fell off, but Bombshell Harley stepped up and punched the Arkham version in the gut. She grunted out a whoosh of air and bent over, but she kicked into the Bombshell's knee and toppled her to the hard floor. She straddled the pilot's stomach, grabbing onto her coat and sending a few more punches into her face. She'd wound up for another when the Bombshell shifted her arms, pulling out of her jacket and leaving Arkham holding nothing but her clothing. It left her surprised as the mad pilot swiftly poked her in the eyes with two fingers.
"Ha! Classic!" the animated Harley laughed before she sent a kick into the Bombshell's ribs. She grunted as the animated version shoved Arkham aside, allowing her to drag the Bombshell by one leg until she could kick her in the hip. Bombshell Harley winced, but she shoved up with her other booted foot. It tagged the costumed villainess in the breast, sending her staggering back and holding onto her chest.
"That all you got? I've punched out Nazis that hit harder than you!" the pilot crowed, getting back up with her dukes up. She swung at the animated Harley, who ducked aside from the first swing. Bombshell followed up with a kick, but when Harley ducked under that, her boot caught on the various switched and knobs of the portal's control panel.
"Aw jeez! Just a sec! Lemme get tha-" But Animated Harley didn't bother waiting, tackling into the propaganda poster girl parallel away as her laces yanked on even more of the switches. By the time the portal was done swirling and flashing, they were already on the ground kicking and tearing at each other's hair.
Another pair of blondes stepped out of the portal... well, more accurately, one wheeled out and one strode out. The first wore the classic red and black outfit with white facepaint as the others. However, she wore roller skates, a helmet, kneepads and goggles with a manic grin on her painted face, resembling a tastefully 60's era roller derby girl. "Holy Harleys!" she declared. "If it ain't a bunch of copycats of da queen of crime! Or is this some devious delivery of that bothersome Batman to foil THE HARLEQUIN!?"
"Sheesh, what kinda crappy old timey dimension did you fall outta?" Arkham Harley sneered at her.
"Yea, and where'd you pick up talking like such a looney tune?" Bombshell added.
Great work done by https://twitter.com/Neshadas11