Profile: Rosco Entertainment deals with theatre, film and television production. Our products include color filters, gobos, scenic paint, fog & smoke machines and dance floors. Rosco's glass gobos are standard products if used in conjunction with standard steel gobos, you will get good effects. There are several types of glass gobos, including prismatics. These gobos include tiny chips of imbedded dichroic color glass in six different styles. Color waves are also glass gobos, but each is a unique texture coated in one of five dichroic colors.