What about a picture with Micah's little handprints on it? I'm sure you can find poems to go on the page with it on the internet and then have it framed. I have some with my kids' prints on them and I still treasure them.
Or how about his little footprints and make up a poem about Micah following in his Dad's footsteps?
Here's an idea and a cute poem--
http://bestbabyshower.stores.yahoo.n...oydagisef.html
Check the last poem on this page--
http://www.babymemoryframe.com/text/footpoem.html