Lot of 7 Vintage Hand Blown Japanese Floating Buoy Balls

Lot of 7 vintage Japanese floating buoy balls. Note - there is 1 that has 2 cracks in it. It is the single ball pics. It still floats - see pics. They're in definite vintage, loved shape - proced accordingly. There are 7 total - 4 small - 3.5"-4" diameter. 1 is an opaque blue, 1 is a clear blue and the other 2 are green-blue. 2 medium - 5" in diameter. 1 is clear and 1 is opaque-ish. Both a green-blue. 1 large - 7" in diameter. It is a clear green-blue.