Not too long ago it was estimated that only one in fifty screen shops was skilled at printing special effects.
What this says is that it represents a business opportunity for a shop willing to put in a bit of effort and time in mastering the various special effects that can be accomplished through the appropriate art, screens, emulsions, and inks.
It’s true that some might interpret the high number of shops not printing special effects as a sign that the demand isn’t there or that it doesn’t pay. But could it be that customers don’t know what can be done and are printers too reluctant to charge what a special print is worth?
This is something you have to decide taking into account you market and customer base. It could just be an added source of revenue. One thing is for sure though, special prints well done always get a “Wow!” reaction.