Actually, at the moment I don't. I have a duckling that was a surprise hatch- the only sole one that we did not know somehow his egg has been stashed away out back and we didn't find it. A opossum did, however, and tried to eat it, thereby hatching him early. He had a lot of problems; beginning with the left side of his face torn off and bleeding when we discovered him in the yard, still wet from his egg, and his eyes not yet open. Later a slipped wing, and some leg trouble that doesn't alter the way he stands or walks but when he is tired seems to pain him. With his injuries I didn't feel right putting harnesses or diapers on him and I haven't been able to find any designs that accommodate his issues. I do currently have my third one on the way now to try to start training him. 
It is a ton of work. An absolute ton some days. Luckily for me (or should I say him) I'm not employed due to my own health issues, so all day long it's vacuuming, shampooing carpets, cleaning and changing his bedding and mine, mopping the floors, cleaning the garage floor, rinsing his pool out front (which doesn't matter because he hates water and will not get in it), he won't go in the backyard, doesn't want to be near any of the Ducks... and you CANNOT leave them alone. I only run errands with a babysitter at the house to keep an eye on both him and my kids: leaving the kids in charge of watching him because he sees them as my other ducklings and will be upset otherwise. I don't trust anybody to watch him or take care of him properly, so I've sort of babied him into being a bit of a brat, but that's the way that he likes it. 
just keep all these things in mind for anyone that wants an indoor duck. They really are amazing, but they are a ton of work, and I've seen too many people think that they want a pet like a dog and then get a new phone or something trivial and decide that the new expense means that they just can't afford the food for the pet anymore and they will Craigslist the animal or worst, going to a local park and releasing them to a flock of ducks that are going to kill them. It's abuse and it's sad. 
My other three stay in the backyard. When they were younger they were inside in a pen with bedding the normal way and then they would get time just around the house with me and a few times a day I took them out gardening, taught them how to hunt for bugs and where the best places where to find the best bugs. As they grew, it became 12 hours in and 12 hours out, keeping them inside at night because I didn't have a pen yet. This new guy was a complete surprise and I rescued him, so I didn't save his life just to throw them out to be killed by his daddy duck and now I am enjoying all of the crazy possibilities that can be a duck who thinks he's human.