Sometimes sixes looked like little pony heads with very long and styled bangs. Or maybe they were pony heads with one foreleg waving over them. As a matter of fact, they looked more like waves than bangs. Rainbow Dash wasn't sure why styled bangs were the first thing to come to mind. Maybe she'd been spending too much time around Rarity.
This new perspective on sixes was the only thing keeping Dash sane. One by one, she wrote sixes down on the paper in front of her, a veritable sea of cheerful ponies greeting one another. Things got even better when she added a nine to the mix. Maybe those ponies were hanging upside down like Pinkie sometimes did, or maybe they were lying on their backs with their upper halves dangling off the edge of the surface they were on. More and more nines were added as Dash imagined all of those ponies greeting each other.
Being that it was Dash doing this, the descent into a competition was inevitable. The sixes might have been there first, but the nines were rapidly growing in number and threatening to overtake them as the majority. What was once a great nation of sixes had been invaded by their upside-down brethren. This was no longer a greeting fest. This was war.
The sixes armed themselves primarily with seven-shaped axes, while the nines opted for one-shaped swords. The bravest of them headed straight into melee combat, steel clashing against steel as the battle for numerical supremacy raged on. An army of rotund zeroes attempted to invade, but this was a six and nine war, and the two sides weren't having any part of a third side. Six archers with three-shaped bows stepped up to fight the new threat. One by one, arrows pierced the zeroes in their round middles, turning them into eights. Both sides cheered this accomplishment, for after all, zeroes were so worthless that this new change greatly increased their value.
The sixes were the first to employ trapping weaponry, using two-shaped lassoes to ensnare their bitter rivals. This was a necessary change, as the nines had discovered four-shaped tower shields and were using them to deflect the axes and arrows. This proved effective for a good while, but the real game-changer was when the sixes rode out on five-shaped tanks. Nothing that the nines threw at them could possibly stop those ballistics, and the demise of the nines followed shortly after. The battlefield was strewn with fallen nines. The sixes were the winners, but somehow, they didn't feel like they'd truly won.
"What happened to our peaceful, waving nature?" Sergeant Seis asked his army as he surveyed the scene. "War changes a number in radical ways. I don't mean to go off on a tangent, but sometimes war is something that can only be marketed to the lowest common denominator. In another world, our two sides could have been friends. Whether it be three of us or two of them, we're all eventually equal."
"Rainbow Dash!"
Dash broke out of her little fantasy as she looked up. Her paper was swiftly pulled from her hooves and levitated in front of an annoyed Rarity.
"What in the wide world of Equestria is all this?" Rarity asked.
"The harsh reality of war?" Dash offered meekly. Rarity raised an unamused brow.
"I ask you to help me with filing our taxes and this is what you do?" Rarity asked.
"But taxes are boring," Dash groaned. Rarity rolled her eyes and gave Dash a pat on the head.
"Fine," Rarity said. "I'll finish these, but you owe me. For now, just...read these forms or something."
Dash opened her mouth to protest, but chose to keep silent. Reading forms was boring, but nowhere near as boring as having to file taxes. She took the forms and relaxed against Rarity as she began to read the first one.
"Hey Rare? What's a codependent?"
"Sometimes I think you are, Dash."