Few years ago I made ClipR distraction free readability bookmarklet based on jQuery. One of first things that ClipR does is trying to eliminate all Flash from the website.
That is done with just one line of jQuery:
With little help of Ben Alman’s bookmarklet making tool we can transform this simple jQuery into a bookmarklet.
ClearAds - Drag or Save this link to your bookmarks
Use this bookmarklet to eliminate all annoying flash ads from any website.