You don't have to purchase a fancy wig steamer (like the Jon Renau one) or even a canvas head! You can very easily use a few, affordable house hold items to fix those flyaways! A gallon of water to hold the wig (or any old wig stand) and your run of the mill fabric steamer (You can pick up from any department store) will do the trick just fine! Then just follow Heather's tutorial from there.
You can watch the steaming tutorial, HERE: https://youtu.be/5ohqhN6HTcc