This can easily be converted into a crochet pattern - lacy baktus - free pattern! Row Knit YO, across the row. Row Knit, make sure you knit the YO through the back loop. Rows 3 and Knit. Repeat rows 1 through 4
To Join in the Round Invisibly: CO 1 St more than pattern calls for.When ready to join in the round, slip this extra St to left needle. Using the working yarn & yarn tail held tog, K the 2 Sts tog. Drop the tail & K as normally would.
FREE Amigurumi PATTERNS: PATRON SNAIL ~ I hope this pattern is in English, but I do have some Spanish crochet translation notes, so I think I can figure it out. I have a baby in mind to make this for for Christmas.
splityarn calls this the "Easiest Knitted Sweater Zipper Install Ever" and it looks like it might be. I haven't tried it yet but I'll let you know if I do - my one attempt to put a zipper into a knitted sweater came out OK, but not this nice.