I use a different method to catch crawdads than the usual trap method,it is not very time consuming and the kids can do it with you. Here`s my method, buy a cheap plastic colander at the local dollar store (my wife won`t let me use hers and yours probably won`t either) and head out to your favorite creek or stream. Stand behind a rock or other debris with the current flowing toward you,slowly lift the rock to minimize clouding up the water, the current will usually clear the water rather quickly anyway. When you spot a crawdad put the colander behind it and place your other hand in front of it causing it to flee,most of the time the crawdads will back up right into the colander.Lift the colander out of the water and put him in your bait bucket. Due to the holes in the colander there is very little resistance raising it out of the water. We have caught dozens of crawdads in no time with very little effort,Try this method it works and as I said earlier the kids enjoy it too.