Well first you want to have a bit more fun.

There is no way to distinguish you from your sister once transformed, so anything you do will be blamed on her.

You try a few things with the bracelet and are happy to see that they work.

You can turn a bag into a pink rubber band and it will include all of its contents.

You drive to the mall and get into the men's bathroom, once in a stall you use the hair sample to turn into your sister and put it and all your clothes into a backpack you then turn it into a rubber band that you put on your wrist. That way you can streak the mall naked, looking like her while keeping all your stuff with you. You had set the timer for the bag to 1h and for you to 1h05 that way you will get your stuff back before morphing, sparing you the risk of being naked in public.

You speak out of the bathroom, the cold tiling under your bare feet and run outside into the mall's main hall.

"Fuck you suckers! Clothes are for pussies! " you scream to the crowd as you run around.

People are shocked and a few of them take pictures, you smile at them but flip them the finger while opening your pussy with two fingers.

You spot an old teacher of yours Mrs Klum that you and your sister both had in social sciences in high school.

"Hey Mrs Kunt, I pissed in your coffee once when you left the classroom! " you screamed at her while pulling her skirt off before running away leaving her in her granny panties.

"Oh My! Veronica Prince how do you dare do and say such things young girl? Security!!! There's an insane streaker stripping people." she shouts.

You then see that you got away and that there is a flaw in your plan. You have no way of turning back into yourself before the end of the timer.

You run through stores looking for a place to hide until the end of it or at least to escape the mall cops that are trying to get to you through the thick crowd.

They are really busy looking for you as you sneak in clothes rails. They only spend a minute or two in each store before going to the next.

But the one you're in is next and they might find you, if they hold you until you change back it will ruin your plan.