I saw 2 on pinterest ( using the search on the word bedpan ) - one was painted and decorated like a Christmas moose. The other was tole painted with a flower and some design on it.
What colors are in your bathroom and what is your vision? I like the idea of using it as storage. You should be able to drill holes to hang it and I would get metal chain to hang it with. I would paint or spray paint it copper. Then glazing it with a greenish tone and then dab off areas. I like that rustic it. I just worry about the weight, so make sure there is in a stud in the wall if you hang it.
Paint to coordinate with the room and add air plants or succulents.
Ok, it would make it even heavier so don't hang it. I love succulents and my plants do good in my bathroom. It should look so nice. I can't wait to see a picture when you are done.
You should only use Rustoleum fusion paint because some paints will not stick on metal of any type.
I would use a Rustoleum fusion paint in a deeper color in the same palette of the rest of the room, or use a bright contrast. If lighting is good I'd put some small trailing plants. Or some artificial greenery.
I still have the bedpan that my grandfather and grandmother used in their later years, worn spots and all. I put foam in the bottom and then some fake moss along with some ivy bushes and some small flowers that matched my bathroom colors. I put it on a tabletop easel on top of my linen cabinet in my bathroom. Unusual but that that bedpan is close to 65 years old .
I'd leave it in it's original form (love the rustic look). However I would write a phrase on it.... We Aim To Please, You AIM TOO Please. Make sure you hang it high. We don't want any funny business. LOL