Get a big gatorade bottle or a big water bottle. Or even a 2 or 3 liter coke bottle. Then get a scissor and poke a hole into the side of the bottle. Get some string and put it through the hole. Where the big hole is at the top of the bottle pull the string through it. Tape it with some duct tape. put some rocks on the back and front to weigh it down in the water. Put some bread in the bottle or/and beef jerky. They catch minnows and crayfish. When you are making the top of the bottle better, if you are, make a funnel of duct tape. so the the fish go in but it is too small to get it.
Step 1: Get the Bottle
i dont have a pic. But just get a gatorade bottle or a big water bottle.
Step 2: Get Some String.
Mainly i like fishing string that can hold like 20 pounds. I like it because its clear and tough. Put it in the hole you poked on the side of the bottle and pull it out through the top of the bottle.
Step 3: Duct Tape and Rocks
put some rocks on both ends of the bottle then rubber glue or hot glue. Duct tape works well too.
Below are the rocks taped on with DUCT TAPE.
Step 4: Bread Or/and Jerky
Just get some jerky or bread and stuff it into the bottle.
Step 5: Funnel
Make a funnel of duct tape so its big when the fish come but there so stupid that they don't know how to get out of the bottle
Step 6: Your Done