When using a vintage piece of furniture for the bathroom sink, chests and cabinets work best. They make it easy to hide the necessary plumbing while giving you additional storage for towels and other necessities.
Have an old dresser with a damaged top? It will be perfect converted for use as a vanity in the bathroom.
Some surfaces of vintage pieces naturally lend themselves nicely to being used as a sink...like the marble top on this gorgeous antique oak cabinet. I wonder if this was a dry sink prior to being made into a real "wet" sink. The mirror above is just perfect. Absolutely beautiful!
Vintage furniture even looks great combined with modern vessel sinks. This one looks especially at home on this painted sideboard. The sink itself even looks like a vintage piece.
Here's an example of a painted vintage piece where the sink is placed down into the piece.
Vintage chests and cabinets are pretty easy to locate in antique shops, flea markets and at estate sales. If you love this look but don't have time to scour the shops, reproduction pieces are readily available in most home improvement stores.
Such a great look! Just a beautiful bowl resting on a lovely chest...except you can wash your hands in this bowl!
The "furniture" look is such a great design for the bathroom. The painted reproduction cabinetry shown in this room, really softens the hard surfaces and the overall feel of the space.
I'll leave you with this beautiful image...another wonderful example of the kind of reproduction "vintage" pieces available for today's bathroom.