Use as you see fit. Free for all.
My own personal (old) Zend Framework 1 library for archival purposes.
This contains such things as:
WordNik API Wrapper Vimeo API Wrapper Flickr API Wrapper Google Dictionary Lookups
Various view helpers - caching, css mashing,date format, username lookups various validators - postal code, field compare
Broken survey engine Broken acheivement/badges engine Broken tags system
dbTable session stores
And some other random stuff. Maybe something in concept is useful.