If you ever thought to yourself, "Self, I need a crowdfunded toothbrush that tracks my oral activities," you're in luck. The folks at Goodwell estimate that we'll each go through some 300 toothbrushes over the course of our lifetime. As such, it wants to do its part to wage a war against the "planned obsolescence" of traditional fang-cleaning apparatus. For just $69, you get a hollow aluminum handle with a compostable, replaceable, charcoal brush head -- even with a $79 subscription for replacement parts that's still cheaper than Oral B's SmartSeries. If you're feeling even more spendy though, you can get what's known as the premium kit, which comes with screw-on flosser and tongue-scraper accessories, costing $89.