Broad brush painting is quicker. And if one is not at hand? In this case, it will help out the spark of two narrow. If the workload is small — they can simply attach sideways to each other with tape. For long work better to seal them together using thin strips (for example, a school ruler), as shown in the figure.
Recommend to read
BUTTERFLY WITH PROPELLER
Very funny flying butterfly can be done in just one evening. You will need scissors, a file, a hacksaw, pliers and, as always, a ruler and a pencil to enlarge the drawing. ...
“THIRD HAND”
When working with small parts — for example, during soldering of electronic circuits, usually both hands are busy and you want or assistant, or an additional holding device. In this...