When you deposit tuppence in a bank account, soon you'll see that it blooms into credit of a generous amount semiannually.
21 seconds sound clip from the Mary Poppins movie soundboard.
You can hear this line at 01:32:56 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, it fires the imagination!
- Plantations of ripening tea.
- Very well, my boy, give me the money. No, I won't! I want it to feed the birds.
- Banks!
- You can purchase first and second trust deeds.
- Think of the foreclosures, bonds, chattels, dividends, shares.
- Bankruptcies - Debtor sales.
- Opportunities - All manner of private enterprise.
[...]