So it turns out that we have a dental hygenist (who is also a 3rd degree shotokan black belt) at our gym. He does impressions/plaster casts/mouth guards. Assortment of colours, patterns etc. I'm having one done. It will be a Canadian flag. $120. I asked the guy if he will take referrals and he says he's up for it. There is a turn around time of about 2 weeks because he does it on the side after hours. If you're interested, let me know via PM and I'll get you set up.