One example is a look I had in mind for our master bedroom. I wanted a pair of lamps with black, stacked-ball bases and modern, white lampshades. I couldn't easily and cheaply find the kind of lamp I was envisioning, but I did manage to find something similar enough, that all I would need was a can of black spray paint to create the exact lamp look that I wanted. I knew from previous projects (such as the one for my laundry room where I repurposed an old, brass chandelier with a can of white spray paint) that a can of spray paint can make a lot of difference, without much work.
I started with a pair of these reasonably-priced lamp bases from Target:
Threshold Acrylic Stacked Ball Lamp Base - Clear Small
I added a coat of spray paint primer, and a few coats of glossy black spray paint.
Add a simple, white lampshade (also found at target), and here is the final result:
We now have a pair of these lamps on the side tables that surround our bed.