Customize chatter feed with CSS or XML?

Anyone know how to customize a Chatter feed through CSS?  We have a Chatter Feed we have made available in a sliding panel as a part of our master page. We only want the user to be able to view the feed. We allow the user to interact with Chatter from a specific record. We also do not want our Users to be able to navigate to certain objects from Chatter (ones without a Skuid Page Assignment).

  1. How can we remove the quick actions on one Feed without removing it from all Chatter?
  2. How can we eliminate all hyperlinks from a single Chatter component?
And for extra credit:
  1. It would be fantastic if we could eliminate hyperlinks to particular objects within Chatter, as opposed to eliminating all hyperlinks.

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