Which diaper should I use and what color beans should he have

Don't know the color I should make his beans. Thinking natural colors or odd colors. Also, Ivan wears Diapers due to not having full control over his bladder due to being a sex toy/slave and having his peen penetrated by large items and random cocks that could fit. Able to control it somewhat now but not at night when he sleeps. Still has accidents even during the day.