A simple toilet bowl made by me
caN YOU OPEN IT ???
No. This model cannot be opened.
But I made a version of it that can be opened. I'll likely release it as a freebie for Daz Studio, but also a .obj version that you can re-import back into Blender and rig yourself.
Here's my revised version of it: https://www.deviantart.com/luqu/art/Toilet-Piotr-03-879263772