Question: How to Make a Sponge Motorboat
Option 0: To make a Sponge Motorboat, first build a propellor by cutting off a slice of cork from a wine bottle and push it on your motor spindle. Make sure it can spin freely.
Option 1: To make a Sponge Motorboat, first build a propellor by cutting off a slice of cork from a wine bottle and push it on your motor spindle. Make sure it is tight and can not spin.
Answer: 0