Thanks for the reply, Ingrid. Any ideas on what type of zipper to buy and where I can buy it? I tried looking at some online to get an idea and some of them said that they don't open (and what's the point of a zipper that doesn't open?? But I digress).
And because my sewing IQ is less than zero (got a D in the class in middle school, don't ask), is there a way I can attach it using a sewing machine? Cause that way I'll just get mom to do it using her machine...yes it's cheating but who cares, I signed up to knit, not sew.