Floating flowers are a fun way to decorate for special occasions, or to simply create something different for your dining room table. Most flowers float pretty well on their own until they start to pool with water and slowly sink. For a longer lasting centerpiece, use bubble wrap to make little skirts for your flowers.
Who really uses their formal dining or formal living room? Make it a game room/theme party room instead...close to the kitchen for snacks...can always do a switcharoo for dinner or theme parties (check out the pool table/dinner table combo on the board) Use furniture sliding pads to easily move it to the side for a buffet table.