If you're making these sweets for your kids, remember that chocolate (raw chocolate in particular) can be somewhat stimulating. To avoid turning bedtime into party time, it's safer to make these a daytime snack. For truffles with a completely smooth texture, a high-speed blender is preferable. Any other blender most likely won't puree the shredded coconut, so the truffles might be a little grainy (though still completely yummy).