Cut Mylar, foil, or cellophane into rectangles that are about 3x the height of the bottles, and about 2 "bottle-heights" wide.
Place a bottle in the middle of a sheet, with the nicer side of the sheet facing down.
Fold about half of the sheet over the bottle, so that it's fairy snug across the bottom of the bottle (top of the "rose")
Wrap one side around the front of the bottle. I took the top fold of the sheet and folded it straight down against the bottle, then wrapped the new flap edge forward - kind of like wrapping a present.
Repeat on the other side, crossing the new flap in front of the first flap.
Gather the loose ends and edges around the neck of the bottle, secure with a small strip of clear tape.
Bend a length of floral wire around the neck of the bottle, twisting once or twice to secure it tightly against it.
Wrap the two ends of the wire around the neck of the bottle, so they're on the opposite side from the twist in the wire. Bend "downwards" - away from the bottle.
Starting slightly above the wire twist, start wrapping floral tape tightly around the neck of the bottle. Tape should overlap itself a small amount at each pass, and should completely cover the exposed wire.
Continue wrapping the floral tape tightly around the two wire ends - securing them together - all the way to the end of the "stem".
Repeat with all of your bottles.
Weigh the "vase" container down - we used rocks - and secure styrofoam into the top of the container - it should fit snuggly and NOT move around.
If your vase is clear like mine was, you may want to hide the styrofoam - I used silk leaves wrapped around the inside of the vase, moss would also work.
If you want to add silk leaves to your "roses", use floral tape to attach them to individual stems.
For loose leaf stems, pierce a silk leaf with a piece of floral wire, close to the stem end. Bend both ends of the wire down and away from the leaf, then wrap with floral wire.
Starting with your heaviest bottles in the middle, stick your stems into the foam. Make sure to jam them in far enough to be stable.
Continue to add "roses" to your bouquet, making sure to distribute the "roses" and their weight evenly.
Once all of your "roses" are in place, add other items - starting with the largest/bulkiest, and working your way down to the most delicate. For me, I added wired leaves and then some decorative wire loops.
Once all of your items are added and you are happy with your arrangement, use moss, shredded paper, or whatever filler you want to cover any exposed styrofoam is still showing.