Nice job! I have also seen recommended cutting part of the lid out of a low plastic food storage or takeout container for water, so they can drink and dip their faces in, but prevents them from swimming in it (too much). After starting with puppy pads and a towel, I have switched to pelletized corn cob bedding, with puppy pads underneath, and that's been working quite well! I really appreciate having such a straightforward and easy to follow duckling brooder setup resource.