A cute friend of mine introduced me to using those punching balloons you get at stores as a chastity pouch. cut off the nozzle end..shove ur junk i to the pouch..nice and tight..and the rubber band pice can be used for all sorts of fun things.
no problem..and their super cheap..but buy a bunch..they can tend to rip after multiple uses of taking them off and on. i wash them inside and out first tuen oat them dry...but if i use em long and/or leak into them then they get tossed.