One of the complaints that I usually get from people that want to create contents but unable to do so is “I do not know how to create 3d models”.
Here is my proposed solution, you can use 3D Models from SketchFab for your Unity + Vuforia AR. In this video I have made, you will learn to import Animated SketchFab 3D models straight into Unity for use with your Vuforia AR. This tutorial will work with most models that has simple animations. If you want to import a model with multiple animations, you need a different method