Spend twenty minutes to watch this fantastic mini-documentary on the life of a prop master. The American Theatre Wing follows Buist Bickley, Kathy Fabian and Faye Armon-Troncoso as they navigate New York City to prop their shows.
Gabrielle Donathan has a very useful article called “The Cost of Custom Cosplay: Where Does the Money Go?” In it, she takes three complete costumes she has constructed, and breaks down every component and task in the process to show their individual costs. The total is basically what she charges her clients. If you think custom work is expensive, this shows why. And if you do your own work, this is a great primer on how to break down a project and account for all the expenses before you come up with a price quote.
Make Magazine has pictures and videos showing the construction of a wearable Rancor mascot suit by Frank Ippolito for Comic Con 2015. It’s mostly sheets of foam rubber with a killer paint job.
Finally, Bill Tull from Conan O’Brien participates in the Prop Master Challenge. This is how I imagine a lot of prop masters do their job (kidding).