I've trying to make my own stamps in Maya and then import them into Medium to use as stamps. I have made about 20 stamps but most of them are simple geometry and some are using intersecting meshes which don't work well in Medium.
Here an example:
Normal model using two pieces of geo intersecting (all looks good in preview page)
Here is what it looks like after running a Boolean -> Union in Maya. The mesh is all water-tight
You can download the meshes here: https://drive.google.com/open?id=0Bwvhwj7RGYOpcVl2TnNqd2FaQ28
Joint_01 - intersecting
Joint_03 - boolean
Anyone have any advice on how to get it to work properly?