You can find the original item, which is represented in the
Dock only by a 'go-to' symbiotic link, a device like an alias;
then when you are in direct proximity and can single-click
the item you want an alias of, to put into a Folder on the
desktop, choose to make an Alias using the Finder control;
move an alias to the desktop & collect all aliases together.
A 'right-click' - or +control-click with single-button mouse+
does work fine to expose the app whose icon is in Dock,
in a position to then create an Alias; for items not in that
dock, once you are creating aliases in general, I just stay
in the apps folder & handle all of my aliases at one time.
You could put an alias folder, into your User account's folder
after dragging alias Folder into the Dock near the Trash where
there is a partition line between the apps and the trash. It
will stick there, and then you would not need to put a folder
of the Aliases on the Desktop when in that user account.
(Main icons themselves in the Dock, are generated in the
process of dragging an icon from an app, into the Dock;
or as part of a more invisible installation process in a few
cases; when bundled software is installed as part of the
OS itself, or authorized apps such as iLife are automatic.)
If you have apps you don't want viewed in the Dock, the
use of Aliases in folder on desktop is a fair alternative. I
have an alias on the desktop to a folder in the hard drive,
and for other items, including aliases of apps I use less
often, I have a Folder dragged into the Dock; the original
is also in the hard disk drive, nested in another folder of
items I don't want left on the desktop; this reduces clutter.
If the folder is put into the active user's account folder,
an alias of it could be put into the user's desktop folder
within the same user account, if not directly to the desk.
In this matter, the last two should be the same location.
I prefer a folder in the Dock for aliases, and one on the
desktop (this, an alias) to keep access to extra items or
files of temporarily saved docs, images, and other, out
of main applications and available to my whim.
{Does this question, in indirect manner, relate to the other
question more recently asked, about removing Safari 4.x?}
Hopefully this method may suffice in your situation.
Good luck & happy computing! 🙂
