bikini top modification for neck migraines?

hello! Not 100% sure this is the right place for this, but was wondering if anyone might have ideas. I cannot wear halter tops because any pressure on the back of my neck triggers migraines for me. But so many cute swimsuits have tie-style tops! What I am wondering is what might be the easiest way to modify these into non halter tops? Like tie the strings around the band or something? Would love thoughts!