I have fallen in love with a lot of recycled glass vases and bottles recently. You can create simple elegant center pieces and displays by varying the heights, textures and sizes together, plus they're recyclable if you feel like trading them in! I think I need to do some flea market scouting to find some similar to these beauites!
Travelling souk, from £17
Natural Simplicity, £12.50 set of three
Recycled glass bud vases by West Elm (found on crownandconfetti.blogspot.com)
VivaTerra recycled glass balloon vases; $39 to $69, (found at mofflymedia.com)