I was introduced to Womp.com. A website where there are a whole bunch of 3D objects. You can also take an already made 3D model and "remix" it. To duplicate its control d to go back to the last step its control z. To add layers you drag the name into the name above so it can Conklin into a group which will move the grouped object all together at once.
https://alpha.womp.com/pre...