The following poofs are for 10.1.x.
As root user replace the original poof.pdf in this folder. /System/Library/CoreServices/Dock.app/Contents/Resources/poof.pdf

Daniel Manley (7-18-02) [Download]	Bob (6-27-02) [Download]
Sven Chambone (2-1-02) [Download]	Hein Mevissen (12-21-01) [Download]
Hein Mevissen (12-17-01) [Download]	Patrick Gerrity (8-6-01) [Download]
Patrick Gerrity (8-01-01) [Download]	Christian Sass (7-13-01) [Download]
Kai Rohwedder (7-2-01) [Download]	Kai Rohwedder (6-29-01) [Download]
Werner Martin Eggers (6-15-01) [Download]	Werner Martin Eggers (5-23-01) [Download]
David Quakenbush (5-13-01) [Download]	Thor Hansen (4-24-01) [Download]

More Dock Poofs