martin has not said he plans to charge anything. i suggested to him maybe setting up a vouluntary  way to make donations, maybe like patreon for those that wanted to help out and show their support. a donation would be totally up each as to how much if anything at all. i doubt he has the desire or more importantly the time to deal with any kind of merch. 

working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.