TTYD: Ponytail Peach
When starting development on this small mod, I knew that I had two approaches I could take: a texture swap, which I'm more familiar with; or an animation swap, which would look better. I decided on the latter approach, which involved digging into the animation files with a hex editor and lots of trial and error. In the end, doing an animation swap turned out to be more painless and fun than the alternative.
In the download I've also included a text document containing names and descriptions of almost all of Peach's animations, which I documented while creating the mod.