The ones that I use the most often are stdExtra.zh (by MoscowModder) and ffcscript.zh, ghost.zh and tango.zh (by Saffith).
I have PMed MoscowModder asking for permission.

Are there any others? For instance, Moosh's FFC script has a lot of high ratings at Pure. Are there enemies or items that are very widely used (Pegasus Boots?)