Frontal midline theta rhythm (Fmθ) has been shown to help connect distributed neural systems into brain functional networks for task execution. In this study, we investigated the current sources and functional connectivity of Fmθ that appeared during manual arts and crafts activities using the low resolution brain electromagnetic tomography (LORETA) method. Current sources of Fmθ are located in the anterior cingulate cortex and frontal lobe, and there are many functional connections in the delta, theta, alpha, beta, and gamma bands. These brain activities are suggested to reflect instantaneous increase in cognitive control associated with craft activities.