Catch your own fishing bait minnows, make your own trap

Minnows.  I forgot the fun in catching them when I was a child.  We didn't have the one like this picture, but it worked just as well.  We used a large empty, rinsed out soda bottle, tied to a string to the end where you screw the cap on, threw some dough balls in it, and placed it an area where minnows were.  We usually secured the other end to a tree branch or even rock on the bank.  Later we would come back and find some minnows in our trap.  It was great fun and we were experts at what kind of bottles worked best and where to place them.