You know what would it be fun to make ? This spherical object that you created, but the thing is, you need a pump to pump water from a river (that is on the ground) ......but let us make it more interesting ...let us make it without any electrical pump ......... just from inertia ! Water comes from below and goes in the sphere and re-evacuates itself back down ......completely useless but very interesting ...I will make that madness one day ... (I hope)