Yes you can but only sometimes like I got the HOP bunny for a HOP advertisement but you only get the animal on webkinz world not as a stuffed animal for you to play with at your house.
YES! If you already have an account and you enter a wrong password to many times they will erase your account and you will not be able to play anymore.
In a way, any kind of regular light source on Earth is an answer. For example, a candle gives off light, but doesn't give off light, as in the word "light." If you light a candle, you'll see yellow...
here is a webkinz cheat i learned. go to the wishing well and wish.look at the middle of the square and if there isn't three wishing wells in a row{if your looking for them}hit the gold x at the top...