The Markal Quik Stik Mini is a 5-inch pen that can apply a line of UV-resistant paint to nearly any surface — smooth, rough, wet, or hot. According to the manufacturer, the marks dry within five to seven minutes and work on steel, iron, glass, concrete, and lumber. The cap provides an airtight seal so the paint won’t dry up, and the pocket clip helps keep the marker accessible. It comes in four colors: red, black, white, and yellow. Price: $3. COO: USA. 800-621-4025.