[header] How to make a minnow trap [title] Cut the bottom off of one of the bottles. [step] Cut the bottle into two pieces 2-3 inches above the bottom. Discard the bottom and keep the cap on the top. 
[substeps] While box cutters usually cut the best, a serrated bread knife works well too. [title] Punch 10-15 small holes into the sides of the bottle.