Silver slammed her door behind her and blew off her father and the servants that had noticed her coming in and out of the house all day. She retreated to her room, locked the door, and threw herself into her costume chest. This was something she was going to save for Halloween, but this was so much more important. She threw all kinds of costume parts onto the floor as the plan formed in her mind. She'd need wings, paper, tape, wigs, crowns, gems, jewelry, dye- LOTS of dye- and something to make her larger. That part was going to be tricky.
Lucky for her, Silver had nimble hooves and experience. She had hidden a sewing machine in her room for just such an emergency. She filled her tub- her own personal fixture- with white dye and jumped in, making sure to stain each and every one of her coat hairs with the new color. She did something similar with her mane and tail, dying them three colors each before deciding that a wig would be better. She raided her costume chest for pieces of costume jewelry she had scrimped and saved for, taking what she could out of her admittedly generous allowance to make sure she got the good stuff. The gold was fake, of course, but at least the gems were real. She stuck her head into her underwear drawer and pulled out a pair of temporary tattoos, each one with a picture of the sun printed on them. Perfect. She stuck on on either side of her flank and gave them time to set. The only thing left to solve was the size issue. She had some stilts, but they were only about a foot tall- her father was afraid she'd hurt herself- and they did nothing about the rest of her body. Finally, Silver decided she'd just have to wing it. She laughed at her own joke, after noticing the fake-feathered wings attached to her back. She picked up a coil of rope, looked at herself in the full-length mirror, and said, "Showtime."
Luckily, the saloon had a fire escape that went all the way down to the ground. Or, for her purposes, all the way up to the roof. Silver was good enough with her hooves- she had to tie that braid of hers with them and only them- that she could confidently tie a knot around a vent on the roof. She secured another knot around her chest and went to work, hoping it wouldn't be too obvious. Lastly, she looked to the sky and waited for the sun to come out behind the clouds. And, with the help of a passing, helpful pegasus pony, it did sooner than later. The sun was shining at full blast. Perfect.
CRASH!
Silver kicked open the skylight, sending shards of broken glass raining down on the saloon patrons. She ever-so-gently lowered herself into the bar, using a trick she had learned from her books on Hoofdini. You know, so she didn't fall into the saloon all at once. The sun burned brightly behind her, and she used that to her advantage. After all, you couldn't notice the rope or the size discrepancies when you were shielding your eyes. "Greetings, my loyal subjects!" She proclaimed, using her best Princess Celestia voice.