From "Spare the quarter-inch plumbing supply line, spoil the child" by Lynn Harris #fundie salon.com
"Select your instrument according to the child's size," writes Pearl. "For the under one year old, a little, ten to twelve-inch long, willowy branch (stripped of any knots that might break the skin) about one-eighth inch diameter is sufficient. Sometimes alternatives have to be sought. A one-foot ruler, or its equivalent in a paddle, is a sufficient alternative. For the larger child, a belt or larger tree branch is effective." Additional advice from their Web site: Switching with a length of quarter-inch plumbing supply line is a "real attention-getter."
"Hands," by contrast, "are for loving and helping," Pearl writes.
Yet again, in a sense, so is the switch. "The parent holds in his hand (in the form of a little switch) the power to absolve the child of guilt, cleanse his soul, instruct his spirit, strengthen his resolve, and give him a fresh start through a confidence that all indebtedness is paid..." writes Pearl. "After a short explanation about bad attitudes and the need to love, patiently and calmly apply the rod to his back-side. Somehow, after eight or ten licks, the poison is transformed into gushing love and contentment. The world becomes a beautiful place. A brand new child emerges. It makes an adult stare at the rod in wonder, trying to see what magic is contained therein."