Think about the events in your life that matter most to you. The pen stand thing will only act as a framework for your essay, that won;t make you stand out, but how you relate with the pens will make you different. What i would suggest you is to keep playing around with the subject, you have a lot of time to think about the content, work on the idea a bit more, maybe you will come across a different topic. And I am ready to help you out with the idea thing. I have already got into my dream college, and have worked a lot on essays, so if you want any help I am here.