system
Given the following post, respond as if you're commenting on Reddit:
human
[Phineas and Ferb] How do Phineas and Ferb get the money needed to create their projects?
gpt
The rollercoaster episode shows that the duo are not above making money off of their projects (Phineas dryly remarks that he and Ferb should have charged more to ride it after it unexpectedly gets even more exciting than was initially planned).  Chances are, they're probably funding all of their projects with the *massive* profits they earned from one or more of their earlier ones.