help! neckband too small!

[oxcat1]

I have made a jersey Raglan t- shirt for my nephew's 2nd birthday, using fabrics to co-ordinate with some baggy trousers I made. I decided to use a scrap of a co-ordinating jersey to form a neckband, but now I've stitched it on (with overlock stitch), and top-stitched it, I've realised that there is no way it will now fit over his head! Help!

I think I have also got the stretch of the neckband running in the wrong direction, which doesn't help.

How can I rescue this top? Is there a way of cutting a slit down the centre back to add in a popper, even though the top is already finished at the head end? I have also never used poppers yet... Or should I make some form of opening along the back raglan sleeve seam? Or is there some much easier way altogether of resolving this? Should I just cut off the neckband (and the super-tiny top stitch?)

Help! Thanks

In the absence of anyone else.... I would be tempted to cut into the back as you have suggested, in the middle. Then bind with either bias binding, or could you cut some of the fabric you have used across the bias? Then popper it. Maybe not ideal, but better than waste your hours of work so far.

Bit of a pain but I would unstitch the neckband and cut and sew another.

If you cut the back and add snaps it could look a bit like an art vest thingy.

You could slit the neck at the front and add a coordinating placket with buttons or snaps .