you take a bucket, a section of pool noodle, a trash bag DIY Homemade Porta Potty. make your own potty bucket liner with trashbag, slip the slit pool noodle over the edge for a toilet seat and attach a roll of TP to the metal handle.
I would also put a second protective bag over the cushioned pool noodle toilet seat to catch splatters (yuck.) An easy, DIY, camping / emergency preparedness toilet that's also good for those long-distance vacation road trips!
Portable Pop UP Camping Fishing Bathing Shower Toilet Changing Tent Room