Well, yes! You can do that with some muscle power, a good technique, and the right tool. But the tool here is not an oyster knife but a screwdriver in your home’s toolkit. It is a good alternative if you can master the technique. First of all, choose a flathead screwdriver and wash it because you do not want to contaminate your food. Hold the oyster firmly with a towel, locate the valve, and stick the screwdriver head into the valve. Twist the screwdriver as usual until the oyster begins to open. You must have noticed the procedure remains the same, and only the tool is replaced by something you have at home handy.