I've been waxing boards/skis for a few years now, family and friends. I've built a great snowboard tuning bench and board storage racks in small room in the garage. Purchased a lot of tools online from the good old USA as Australia don't seem to have a lot of the higher end products from good brands. I've discovered a great scraper to use is a "Chef Inox" plastic handled Stainless steel dough scraper. These are 150mm wide x 100mm tall. I just put a slight curve on the end tips of the blade to prevent it from gouging into the deck if you get a but radical on the scrapes. These are only about $Au4 and will last a lifetime. Really easy to hold with my big hands and do a great job. I've got a few perspex ones 150mm and 300mm but they need to be sharpened up every now and then.