Well, I think Frodo is easier, maybe, but I like Gandalf better, and since he's gray with a white stripe, that works since Gandalf started out a gray wizard and became the white wizard. I think it's perfectly suited. Of course, there's always the option of Merri, Samwise (Sam for short), and I can't for the life of me think of the other hobbit now.
Of course, in our somewhat sick sense of humored household, it would probably get a name like... "Bait" or "Snack".. I keep vetoing the introduction of a poor little hamster or something to my sister who keeps saying, you know, the cats would really like one of those in a hamster ball.. I'm like.. yeah.. not so good for the hamster.
"Yeah so, what happened to your hamster, Heather?" Well, there was this hamster ball.. two Bengals and a Mau..who thought it was great fun to chase the hamster around in the ball... I think it died of a heart attack..
Anyway, Gandalf was my vote.. and best of luck! Let us know what you name it!