Update: My boss assigned me a multiple week project, so being replaced is not likely in the very near-term.

Please help. I might be getting replaced by an ad agency very soon. I am the only IT person (an in-house web developer) for a small business, and the boss no longer has the time to do his own research to decide which projects I should do in order to make his site more competitive. What I need most are ideas for a quick example program that I can put online to show my capability and some code grooming. I read a book on PHP security (Essential PHP Security) before I started writing PHP, I tried reading a code quality book but discovered very little new information in the first three chapters (Code Craft - I guess code quality was common sense to me or that book wasn't challenging), have worked closely with an SEO, and I just bought Design Patterns by the Gang of Four (haven't gotten too far in yet though), so I'm probably looking better than a lot of other web developers, but I must acknowledge that I taught myself PHP/MySQL with no mentor and this might mean that I'm in need of grooming and do not realize it.

Would you, or anybody else reading this, be willing to help me decide what to make for my example, tell me what improvements to make to the code when it is finished, and criticize my resume?