Things That Float

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Across
  1. 3. Not yet, but they will in the future
  2. 4. Doesn't float, but it's made of floats
  3. 6. Essence of Tree
  4. 8. Ferries
Down
  1. 1. A hat for champagne
  2. 2. Hard Water
  3. 5. Just add ice cream
  4. 7. Tool of the trade for clowns