Hi, I don't know for sure if the following software is able to create 3d models that you can print etc. But Cinema 4D is pretty "simple", at least the learning curve is not so high then let's say Maya or 3Ds Max. You could give that a try, there are a lot of cinema 4d forums/tutorials out there.

I totally agree with hmmm, building a business on a service that might (and in time deffinitly) disappear is crazy. This is for every remote service. I have the same problem for a business of mine (CloudFormz). I would like to add the DropBox API for example so all file uploads are uploaded to DropBox. But what if the api stops working or even worse, DropBox stops it service? Then you get a lot of angry customers and you have no way to retrieve your data. (sorry for my English grammar). Do you have any failsafe ideas?