I found a lot of 6-Axis Coordinate Cubes to print but i wanted one to also show Axis U,V and W. Took me some time (new to Fusion360) but here it is.

You need to print all Parts once except for the Tip, that needs to print 3 times.

Printed it on my Mini+ and most Parts snapped together without the need for Glue.

Mounting Steps:

1 - The inserts go into the respective Pins (U into X, V into Y and W into Z), then you snap or glue the Tip to the insert - careful not to glue it to the pin, the insert-tip-combo needs to move freely!

2 - Add the Rings to the Pins (A on X, B on Y and C into Z) with the chamfered side toward the Tip of the Pins. They schould sit snug but still be able to rotate.

3 - Add the Pins into the body. If you use glue make sure to pull the inserts out until the glue hardens, otherwise the inserts become stuck to the body. 

There is a groove on one side each tip to be able to pull the inserts out to reveal Axis U,V and W.