I quite enjoyed reading this little story, and I liked the premise you put out with the Kanker sisters and the canon. Your writing is pretty good, though there were a few small grammatical errors. I would probably suggest to work on the description of the sisters and how they've changed though, instead of just coming right out and saying that they're different, try and incorporate it into your story more so the readers know without you directly telling them.

All in all I did enjoy your story and hope to see more from you soon!

I liked it, I did! I only have a few pointers. I think at the beginning of a chapter is always the hardest to refine... in terms of placing the setting and introducing the characters. Ease into the scene a little more; perhaps by describing the scene in the "show don't tell form". My second thought was how your described the Kankers. I was able to get a really clear image in my head, but it was a lot more of you just kinda telling the reader upfront what they looked like and how their personalities had formed. Show instead of tell... weave their appearances into the writing and let the reader develop an image on their own. My third point were just a few tiny grammar stuff, just capitalization in one or two places in the story. But I like where you're going and I think the story is off to a good start! Keep going!

Noice.
MeEd, Edd n Eddy 3
(If the heart doesn't show, you know what I mean)

Can't wait to see what happens next.

Not bad. From what I know I would say that you've taken a simple thing and turned it into an interesting whacky adventure with the sisters craziness. It was a good choice to choose them to show a whacky craziness that works perfectly. Eddy might not think of such a thing and Edd would probably refuse to build it. The line about charging people to use it felt out of place and more along the lines of something Eddy would say. Its a well done start to a story.

This has the makings of classic Kanker shenanigans and I can't wait to see what happens next!