Final answer:
A wig block stand is used to hold a wig or hairpiece in place on a canvas block during designing, cleaning, and maintenance services.
Step-by-step explanation:
The item used to hold a wig or hairpiece in place on a canvas block during designing, cleaning, and maintenance services is called a wig block stand. This stand is specifically designed to securely hold the wig or hairpiece in place so that it can be easily manipulated and worked on. It provides stability and support while the wig or hairpiece is being styled, cleaned, or maintained.