There is a two-toned ball in the Sarpaneva Kokoelma Collection book described this way (it is clear on the bottom and blue on the top, with a small hole at the top):
Art Object Iso tantrapallo (large tantric ball)
Glass, turned mold blown
Signed Timo Sarpanva
The bowl and plate are a little bit difficult to distinguish, but the blow could be:
Bow, li-301; 2301
turned mold blown, flared base cut
D 175, 275
signed Timo Sarpaneva
Iittala-57 (green) i-301 (blue)
The plate could be:
Plate Ikava (Yearning)
There are other plates and bowls but if these are the correct ones, they would all be from the same vintage and might certainly have been purchased together.
Great pieces. Good luck with them.