I have her in a big rubber maid tub. It works great and holds heat well. She has 2 lovies in there (thanks to my kid's abundant supply of stuffed animals) and towels and such. The girls are so worried because she keeps peeping any time someone isn't around. They are taking shifts sitting by her lol.
That baby in your pic is precious!
Goosed I move goslings out of my LG much faster than I do ducklings. They seem to big when they are walking around and stretching up. I use a 30 gallon glass aquarium as a 72 hour post hatch tank. However, when my african hatched a day before my toulouse babies last week, I set up a brooder pen out of a rectangle sized plastic crate. It worked well. Teeny baby goslings are like teeny baby puppies. They are very stressed to be alone. They will have lots of energy in between long naps. They like stuffed animals and soft towels to snuggle up with. Here is a pic of my set up:
I have to special order feed from my local mom/pop store, but you may try looking at mazuri website for major distributors like TSC.