Strainfree Method of Collecting Butter From Curd With Homemade Blender

It strains and takes long time to collect butter from curd manually. Electrical blender works in High Voltage which is unsafe for kids. Here is a simple Blender made up of simple objects procured from old Toys at home. It works fine with Battery. 1/4 amount of mixing water with curd will give a better amount butter.