Max Walter's has spent his whole senior year trying to figure out how this clone machine worked. The whole thing has been taken apart and put back together countless times, enough that it probably will have many problems if it's used. But none of that matters, because Max has successfully reverse engineered the thing, making a much more streamlined and compact version.
Max smiles as he slaps his new wristband on, this thing is able to do everything the original machine could and more! All he needs to do is scan someone's DNA and aim it at someone, then with a press of a button the person will change completely within a few minutes.
Now that the basic function is out of the way, max goes through the menu on the watch looking device and messes with the new settings he added. This device is still very much a cloning device, but now Max has more control with it, such as deciding if the person gets to keep their original memories and personality, or how much they actually change into the desired person. If he wanted, he could change someone into half themselves, half whoevers DNA is loaded into the device.
"Finally, I'll be able to get my dream girl... I just need to get a strand of her DNA tomorrow and I'll be set! First things first though..." Max plucks a piece of his hair and sets it on top of the device, after a few seconds he brushes it off, the device is able to store up to 3 people's DNA on it at a time, he just needs to make sure he won't be lost if anything happens.
Putting his shoes on and heading out the door, Max heads to school. "Hopefully I can get her DNA soon, there's only a week until school is over..."