If you try this tool out, be sure to hold the braid ends for at least 15 seconds. It will not burn the ends off completely either way, but by releasing too soon the yarn fibers may not melt enough to hold long term. I have really loved the smooth finish and so far we haven't noticed the ends snagging on Mocha Girl 2's clothing.
Since publishing this video, I have learned that there actually is a tool made for this with multiple reviews on YouTube. I must have watched one of these reviews in the past and forgotten, because as I said in the video, I fully expected Sally's Beauty Supply to have something. It's called a Braid Sealer and I ordered mine on Amazon to make a comparison. Same mechanism, however, I expect the Braid Sealer to be hotter and leave a rougher finish. I'll definitely be back to let you know what I discover.
Both tools may be found on Amazon if you are interested.