re-purposing project, need ideas..

I have 2 old style medicine cabinets I received off Craigslist.

I have this vision of somehow using them to create an activity center or a message center or something...

Hoping some of my blog friends/ readers can help me come up with something... Here is a stock photo to give you an idea of what I am dealing with...

I have glass shelves that can go inside or since the inside is metal I can use it for magnets...

I stopped at ReStore the other day and found white tiles  up to 12 x12 and thought I could put a white tile on the front (mirror) along with some cork and create a message center... But not sure what to use the inside for ...

My other thought was a magnetic activity center but not sure how the mirror would work into it... I can mount it on a wall if I need to, but would prefer the "activity center" be mobile somehow...

Any ideas?  Don't worry if you can't think of something, I have a few other finds that I'm hoping someone will be able to inspire me on...