Line 9x13 pan with nonstick foil. Place the Rice Krispies in a large bowl.

In a medium saucepan, mix together the sugar, corn syrup and peanut butter. Melt, remove from heat and add the peanut butter chips. Stir until melted completely.

Pour this over the Rice Krispies and stir to coat evenly. Transfer into the prepared pan, and pack it in tightly into an even layer. Freeze until set.

Once set (about 10 minutes) cut them into candy bars. Lay out some wax paper on a pan.

Melt the chocolate gently in the microwave. Using a spoon, dip each bar into the chocolate.

Lay on wax paper. Add a design on top, if desired. Chill until set!