Love this idea! Take two IKEA Expedit bookcases, frame in MDF, paint, attach casters, and bolt some stained to the top. Designed by the amazing Justine Taylor. This would be good in craft room or an office and maybe a kitchen island.
Components for DIY Dining Nook with Storage (note from Larissa: I may try a version of this for in Es bedroom under the window to add a little reading spot and book storage for her) - Home Decor Dreams
Expedit - Love the way this popular bookshelf from Ikea was styled to maximize the available space. Magazines filed away, books organized by color, and low baskets to store things you need at an arm's reach but don't want to necessarily see.