For about $30 in materials (and an hour or so of time), you can build this versatile sports goal, just right for games of backyard soccer or driveway street hockey.
Using a hacksaw or other fine-tooth saw, cut one pipe into two 51-inch lengths, leaving 18 inches of scrap.

Cut the other pipe into two 40-inch lengths and two 20-inch lengths. Then simply assemble the net as shown, sliding on the sleeves of the netting as you go.