I present to you the grand technology of.... The diaper!
So astronauts shat and pee'd in diapers for ~six days in low gravity, where pieces of shit and small fecal matter and piss could fly around, and particles could blow into the guy next to you, into circuits, onto papers and other delicate equipment.
I'll do you one better, here is their official report.
The following radio traffic is official Nasa transcription :
"Stand by Houston...prepping the ec-99 for circuit reset..... What's that? yeah just go >ahead Armstrong...yuo don't have to ask"
"bbrrrrrAAAPPPPPP"
Houston: "What was that eagle ?"
"Uh...Prepping ec-99 for telemetry. Can we get the 446 six..uh..six niner please. Reset circuit 77.... oh MY GOD . What did you eat Armstrong....
Houston: "errr, come again eagle, what was that last radio...did not receiver. over"
"HURK...hurk....the smell. it just lingers....hurk....armstrong just took a shit right next to me...hurk"
bro, come on. You can't shit in a plastic bag in zero G's in an air contained rotating box next to two other people also peeing pooping during days of fatigue inducing precise maneuvers.