There are a bunch of options, but any all-purpose cleaner should work. A basic kitchen cleaner should do the trick, too. Whatever you choose to use, aim to use a natural cleaner.
Double check to see if it has any tags with washing instructions. Not all polyester stuffed animals can be washed, but most polyester fabrics are machine washable. Does the stuffed...
You can print on polyester with normal InkJet transfer paper. The normal temperature range for polyester is 170 - 200 degrees Celsius depending on the transfer paper. You can also...
Paralysis, and prolonged exposure (especially to the neck or heart) can kill. You could incapacitate someone, but if not careful, could outright kill or permanently paralyze.
Yes, you can fill in holes or cracks with a filler cream. Afterwards, buff the leather out and apply a matching color dye or pigment to the affected area.