Here's a handy little helper for a plethora of uses like modeling, fixing stuff and videography etc.
Bearing used: http://bit.ly/2MnoktD (30p on sale)
Bearings x 10: http://bit.ly/2MppCUT
It utilises a single common bearing and has different platforms with the view to use custom made ones as desired.
The "Cradle" with the square void register may need support but block it for the wings as they should print fine without support and save time etc.
You may require a raft on the Pin depending how good your bed adehsion is.