Some of the more advanced construction techniques involves chemicals which can be hazardous or even deadly if misused.

Always use ventilation when using chemicals or working with fiberglass or latex. There should be a flow of air across the work area which causes fumes to be ejected from a window. If you work with flammable material, it is best to have the fan in another room in front of the window, blowing air in, then work in front of a window in another room so the air flow is across the work area and out the window.

Always wear suitable protection as a respirator, goggles, heavy duty clothing and gloves.

Always read the instructions fully, even removing the label to keep after marking the container with a marker or a label so you know what it contains. Chemicals go bad after a while. It is not advisable to use chemicals that have been sitting around for longer than a year.

One costuming technique involves painting the face, or body. Never use commercial paint from a paint store or home improvement center. Only paints specially formulated for body painting must be used.

Safety is important even after the costume is finished. Costumes are flammable, beware of open flames or lunatics with matches. Costumes are hot, one can get heat prostration in a few minutes on a hot day.