Max9 I was willing to trade the discomfort of the chains for the cleanliness over the wire or the hole. I think the best solution would be to have the front shield and its attachment be rigid enough that a rear attachment is not necessary

    A few male devices do that in combination with a ball ring, creating a design that is essentially a hybrid between a full belt and a beltless cage. Behindbarz and Chastitysteel come to mind.

    a month later

    Subby Could imagine urine would end up in the shield. See in the link that there’s a belt with grill type maybe would solve urine problem.

    After toilet, shake the shield and use paper. I never had problems.

        Markus Makes sense I have seen they make one with cage/grill type of shield not sure it would feel nice during nightly erection.