Something about simple repetition and grouping make objects art. The folks at Lost Found Art do an amazing job grouping things and installing them. Everything from toy laser guns and lunch boxes to antique objects become art with their arrangements.
The master organizer of objects is Benita Larsson. I pretty much drool over every room in her house. Her fourteen year old son has the greatest room, fully of all kinds of amazing collections. Somehow she manages to make all the cool objects look extremely organized, and not at all clutter-like.