Cut or tear the page of newspaper along the short dimension to make three even, rectangular pieces. Each of these pieces can become one garden pot.
Fold the top 2 inches down on the long side of each rectangle. This fold is the top of your garden pot and the extra layer makes the pot more rigid.
Wrap the rectangles one at a time into a cylindrical shape around the straight glass or bottle, keeping about 2 inches of the unfolded edge of the paper overhanging the bottom of the glass. The multiple layers wrapped around the bottle provide the strength to the finished pot.
Turn the paper-wrapped glass upside down and fold the loose edges of paper across it as you would fold wrapping paper on a birthday present. The easiest method for this is to fold the tubular edge down in thirds, ensuring the final third covers all gaps.
Slide the glass or bottle carefully out from the paper tube. The resulting tube is your garden pot. It should roughly measure about 2 1/2 inches in diameter and 4 1/2 to 5 inches in height with one end closed.
Repeat the rolling and folding steps until you have made as many pots as desired. The garden pots can be filled with compost, soil and seeds and placed into the waterproof container so they can support each other adjacently. The pots will stay intact under normal watering for several weeks. Once the seedlings appear, they can be transferred into the ground.