"Not really. Try not to get the sand wet or let anything like trash or something get in it. You can put the sand in another container if you don't like the vial. You can even actually lose little grains of sand and it won't leave him with little eyes everywhere. With a tiny grain of sand the space he could see with it is about," she holds her fingers half a centimeter apart, "that far. And nearly no sound pickup, even if you are directly addressing him, you practically have to shout from less than a foot away. And then he will renounce his claim on the sand or move it to another part of him, because part of him being a tiny grain of sand, blind and deaf and alone, is kind of annoying."