Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4664438.
I really liked the Vat Saver(https://www.thingiverse.com/thing:4494475) for when I was working on the vat, but once I got my second vat I wanted something that actually covered the FEP while I was storing it. So I remixed the Vat Saver into the Vat Vault. I added a floor (2mm lower than the shelf so to not touch the FEP) and 5mm threaded holes to screw the vat down. I use https://www.thingiverse.com/thing:4585753 as the lid. This is not intended to be a secure way to store a vat full of resin as it does not seal. It may help with sloshing if you are moving it around. The point of this is to protect the FEP on your spare vat while in storage.
If the threads become an issue, I will likely install threaded inserts.