I have a set of soft toys and i want to build an AR experience for them. I am not very well versed with AI or AR but have some coding experience in past so i dont shy away from that.

I have made simple AR apps on Unity by watching videos online. Now i want to create an App which recognizes my Soft Toys and then places 3d object around them (and many other things).

What i want is to implement a 3D Object Detection on my toys. But ARCore does not support that. Mediapipe Model Maker can help but it only does 2D bounding box.

I dont want to use Vuforia or any paid libraries. Can someone please help me what are my options here (Maybe OPEN3D, Mediapipe Obbjectron??)

ALso, if there are some tutorials to do 3d custom object detection, please share.