WP-o-Matic Rewriting Links Question

I have several campaigns running update content on my adult site, but the problem is I end up giving away a lot of free backlinks to the tumblr pages.

My question is, can I use some sort of wildcard with the re-writer tool to redirect to a link of my choice?

For example,

Redirect anything.tumblr.com to google.com

or

*.tumblr.com to google.com

I believe the above is possible, but I had an additional question that may not be possible.
Can I go one step further and strip all the text from the tumblr post(s) and just get the image?

Thanks in advance for any help!