Counter top basins are highly recommended in this setting and the look out for extremely unusual decorated designs. Place it on a washstand or run-down vanity unit. Add unique ornaments and antique framed mirrors.
This does take more work though because you have to change the setting for the insert to go into. Another great option though is to consider no vanity and just to have it mount to the wall. Such bathroom basins offer an appearance that makes the room open and to seem larger than it really is. However you do need to make sure you secure them correctly to the wall for safety.
It can be fun to change up the faucet design you will have in place for your bathroom though. You can transform it into something elegant if you want to give it an upscale feel without a huge expense. It is a good idea to look at images so you can see the various options available.