Cathy Huyge profiles Jack Walsh, a Salem glass artist who got the idea for his technique of etching glass through sandblasting while spending 30 years building and cleaning bus motors with a sandblaster:

... The sandblasting machine looks like an incubator in a hospital's neo-natal intensive care unit, complete with arm holes with gloves on the inside that Jack inserts his hands into and uses to manipulate the blasting hose and the bottle. ...

Some examples of his work.