if you mean plastic bottles then a little robot but it will take time to make.
25 plastic bottles
Not so many. Most people take them back to the many recycling centres.
Are these 2 liter bottles? If so about 20.
25
456,047 water bottles
It depends on how much you get for each bottle.
The water bottles in landfills take up a great deal of space. It is estimated that about 20 percent of a landfill can be made up of plastic from water bottles.
Clear and green plastics usually (similar to beer bottles), which you can take to your local recycling center.
If each bottle is 12 inches long, it would take 5,280 bottles.
Most recycle centers just take plastic bottles, aluminum cans and glass bottles. You should call ahead of time before making a trip there to be sure.
I don't know about the rest of the Answers.com community, but I map amy sleeping bags with material and duck down... plastic bottles would be too hard to sleep on