A couple things to do with images.
A REVERSE IMAGE SEARCH please :/
People have been complaining about a lack of images. Maybe do a little project where users submit pictures on all kinds of topics out of good will. You could name it......"The image project" Will it take up too much memory to keep the pictures?
^Connected to the above, you could add another button under the thanks for getting involved called "I want to contribute" where you can host projects for all the things you need and people can contribute to them. I just thought you'd support it because you seem like such an advocate of crowdsourcing.
Built in image editor widget (see my earlier post about widgets)
And something else. Maybe a list of apps, browser extensions that duckduckgo supports? For example Disconnect and HTTPS everywhere extensions on chrome.