Islands can "float" as well. Smaller islands used primarily as an aid in cooking or baking can be fitted with wheels and moved around the kitchen as needed to aid in cooking. Whether you consider a floating island will probably depend on what you have installed on the floor now, or plan to install (a soft wood will be nicked and scratched).
For those remodeling and looking for an "open" feel where perhaps the wall or half wall separating the kitchen and the dining room is taken down, a strategically placed island acts as a subtle room divider mentally separating the kitchen from the dining room but with a much more open feel.
Mind Your Head : If you are hanging anything from the ceiling, make sure that there is sufficient clearance so that people do not bang their heads on a skillet or frying pan! Clearance is all-important with kitchen islands, because there is not a lot worse than having a kitchen that is severely restricted in space just to accommodate an island. The island should complement your kitchen, not dominate it.
For example, we have seen islands of concrete when the rest of the kitchen countertop is made of granite or another material. We have seen a black island used as a nice "dividing wall" to keep the kids away from a white kitchen.
traditional kitchen island pendants
traditional kitchen island stools
traditional kitchen islands