Thanks! Actually I have completely failed to do any more work on it since I came home from my parents' place. I think there was not actually time in my life to make this shirt! But I will finish it eventually.

I have these small hooks that I thought might work, but you're right that it might be uncomfortable, hmm. Yeah, I guess if you're making a not-very-sturdy seam it might not take that long to add/separate them.