It's as easy as flicking the right switcheroo, if the right switcheroo can be found.
4 seconds sound clip from The New Adventures of Winnie the Pooh - A Pooh Day Afternoon (S4E3).
You can hear this line at 00:02:48.791 in the Blu-ray version of the episode.
Quote context
[...]
- Piglet, you were just supposed to make the handkerchief disappear.
- In the Land of Enchantment, which is awfully dark.
- Will you be needing another volunteer?
- A good magician can un-magic his own magic, you know.
- It's as easy as flicking the right switcheroo, if the right switcheroo can be found.
- But how shall we un-dissapear Piglet?
- Help!
[...]