The quilt looks great, and it seems your little helper probably made it a bit more challenging for you. One of my cats loves threads and strings of any kind, including the whiskers on the other cat. That's what is happening in my avatar picture, though I didn't realize it until later when I noticed all the lopped off whiskers!
We constantly have to keep track of thread and things like that because they can be extremely dangerous to a cat if he swallows them.