Here are some projects we are making or helping to develop.
It is implementation of Hamcrest idea in Common Lisp.
It simplifes unittests and make them more readable. Hamcrest uses idea of pattern-matching, to construct matchers from different pieces and to apply them to the data.
Works nicely with Fukamachi's Prove unittest framework, but could be extended to support other frameworks.
SVG version of the great "Made with Lisp" logo by Manfred Spiller:
It scales nicely and could be used in site's footer. For example, look at our's footer.