Do you need an extra toilet in your house?
Do you have an unused shower stall?
(Or you can make it outside of the shower stall as long as there is a
* Help is here *
You dont really need any plans.
You just need a scrap of plywood, some metal brackets, a traffic cone
(stolen from the highway), a large hoseclamp, scrap of PVC pipe, and
possibly some caulk. The toilet seat is optional.
Just look at the photo.