I'm sorry, but no. There's no way to change the name after it is created.
If you adopted the neopet from the pound, recreate the same neopet if you choose and enter the name you wanted it to be. Though you can still keep the other neopet or abandon it so someone else may adopt it, but that's not nice, is it?? You have a limit for owning Neopets which is 4 neopets on every account you create.
New neopets are created periodically so it is entirely possible, but unknown at the time.
Just about any font is usable on neopets - if there's more than one word in the name put them together.
According to neonewsnow.com the Witchy Negg 'Can change your NeoPet into a Lenny, Tuskainny, or Moehog, change NeoPets gender, boost there intelligence, raise there HP or cure any diseases the NeoPet has.'
mrtiki.com, and i dont know any other ones
furry, George, Faith, Fiona, or any name you could think of. i would name it one of those though.
Sadly, the Usuki Playsets are just toys for now, but maybe in the future we will be able to put clothes and hair on the Usuki dolls and change the outfits. For now, play with them as you would any other toy on Neopets.
Go to the Neopets homepage, and look for any advertisement that says to Sign Up on Neopets. It's usually a banner to the left of everything.
Any neopets can be strong. You just have to train their levels up. the strongest is Majal_Kita the Jetsam
Marapets
any
Sunnyneo.com has tons.
in any shop