Let it snow-cute blocks and super easy!
DIY Snow Globes with Christmas Lights. I would use remote battery lights for easy lighting and to hide the cord.
Garage shelving idea: the lower shelves actually glide out so you can step to reach top shelved items. Then they slide back to the wall. This would be so easy!
Someday... though I probably would have this set up in my living room with the entertainment unit incorporated. The Design Chaser: Bookshelves | Ideas for the Home
An unassuming bookshelf - it's a door that opens to reveal a passageway with more bookshelves.