Any Wii games for a person with only one hand?

My 5 year old daughter is starting to show an interest in video games. As a gamer myself, I'm okay with this in princicple, but she has no fingers on her right hand due to a genetic disorder.

Since she has digits on only one hand, playing on an Xbox or and PS model is something she can''t really do. Which brings me to the Wii.

I've never played on one, or used one ever. I've heard that it uses some kind of motion sensing technology. But the design of it also seems to assume that the player would hold two controllers, one in each hand. Right?

Can a Wii owner help me out by telling me if there are any games in the Wii catalogue that might be playable for a user with only one hand? Any of the Wii Sports games? Golf? Bowling?