A portable device for stabilizing an arm or hand of a person. The device includes a stabilizer shaft having a peripheral section and a mating section, a stabilizer coupled with the peripheral section of the stabilizer shaft and configured to engage the arm or hand of the person, a base shaft having a peripheral section and a mating section and in slidable arrangement with the stabilizer shaft, an attachment assembly in cooperative association with the mating section of the stabilizer shaft and the mating section of the base shaft, and a garment clip coupled with the peripheral section of the base shaft. Methods of using and constructing a portable device for stabilizing an arm or a hand of a person are also provided.