You know, I believe I have a very small idea.
5 seconds sound clip from The New Adventures of Winnie the Pooh - A Very, Very Large Animal / Fish Out of Water (S1E19).
You can hear this line at 00:02:46.320 in the Blu-ray version of the TV Series.
Quote context
[...]
- No. I'm so small, I'm not even big.
- If I were big, those crows wouldn't have me to kick around.
- I'd have to be twice my size to even be small.
- I wish I were at least a bit bigger.
- You know, I believe I have a very small idea.
- Ouch! Oh, my. Something's not quite right.
- Do you see that? He's... He's...
- I don't think I've ever seen a piglet quite so tall before.
[...]