Lil Twister Tool

So we made a detour on our way home through South Dakota and visited Quilt-tiques in Rapid City.  Sure there were other sights there but this one sticks out in my mind. (Oh, yeah, Mount Rushmore, Crazy Horse,...)

I bought a kit with the Lil Twister Tool that makes these cool pinwheels.
It went together in a day and here is the small top

Cute and christmas-y
I liked it just this way but the pattern recommends the addition of some ribbon...

What do you think?  This is what they recommend.  But is it necessary??