There are no new codes. All the ones you probably have entered by now.
There are no headband secret codes. Very sorry.
There aren't any new 2010 pixie hollow codes. And the existing ones doesn't work either.
Yes
All codes are listed on the Disney Online Worlds Wiki.
There are no different codes than there were in 2010 rather than "derby" and D23.
406060, 667754, and 456467.
Its because they were valid in 2010/2011 also some people didn't know about it so it was more of a secret, get it secret codes, so its like people had to figure it out but now everyone knows them so its like pixie hollow is giving away free clothes for nothing. Here are some codes that still might work. garden derby style summer revelry and fashion
Here one... PPBQ4K752PSL6LLJ. This works, trust me! It will give you 55 raspberries!
Nothing besides the normal codes. There are new ones such as Derby and D23.
Other than the normal top and skirt, there are no new cheat codes or different ones. Derby and D23 are the newest codes, but aren't very useful.
I'm sure its possible to but the codes for beds are extremely rare since the beds came on three years ago in 2008, when PH was first developed. Also in 2010 Pixie Hollow changed their codes so finding one that still worked would be even harder.
You may have typed them in wrong, or, as of somepoint in the spring of 2010 (i think), they were replaced. The old codes no longer work. They have been replaced, and the old codes retired.