DIY "crackled cystal" snowball ornament: Add a little water to a bowl of Mod Podge, just enough to thin it out a bit. Pour a little in a clear glass ornament, swirl it around to coat the inside, and let the excess drip out. Pour some epsom salt into the ornatment (and maybe a bit of silver gitter as well?), shake it up to coat the inside of the ornament. Let dry and voila!