Birthdays!

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Across
  1. 2. a greeting you put in an envelope
  2. 5. a special sign for birthdays
  3. 6. what people give you for your birthday
  4. 7. please come to my party
  5. 8. how you celebrate your birthday
  6. 9. its wibbly wobbly
Down
  1. 1. they come to your party
  2. 2. You blow these out
  3. 3. The bit of the party food everyone waits for
  4. 4. A party game
  5. 5. you blow these up