How to Unlock the Carnival Crown in Animal Crossing: Wild World (DS)

The Carnival Crown is a reward in Animal Crossing: Wild World:

1. Complete the "Happy Home Designer" villager request (received via mail).
2. Earn 50,000 Bells (sell fish, bugs, fossils, fruit).
3. Talk to Tom Nook—he awards the Crown.

Notes: One-time per save file. Request appears after sufficient progress.