Pokemon Pokeball gear shifter knob without nut

This has a hole at the bottom to suit any car, just needs a nut added.

Use the nut creator: http://www.thingiverse.com/apps/customizer/run?thing_id=193647 to create a nut to suit.

For example, this will suit a Hyundai excel (10mm x 1.25mm).

step_shape_degrees = 45 outer_diameter = 14 socket_diameter = 5 thread_step = 2 head_diameter = 12 inner_diameter = 8 non_thread_diameter = 0 nut_diameter = 12 thread_outer_diameter = 8 nut_thread_outer_diameter = 10 type = nut head_type = hex nut_resolution = 0.5 head_height = 5 thread_length = 25 nut_height = 15 thickness = 2 resolution = 0.5 nut_step_shape_degrees = 45 nut_thread_step = 1.25 countersink = 2 non_thread_length = 0 nut_type = normal