This is an interesting idea, but not a good one.
I came to this page thinking what an interesting idea.
An interesting idea - until you work out how much it could cost.
This is a very interesting idea and I feel we should support it.
Interesting idea, I can't wait to see how it works out.
A number of very interesting ideas have been put forward here, which the Council will be happy to take up.
I think this is an interesting idea and a good one in its context.
And so there's a lot of interesting ideas in there about ways to do these things.
It is an interesting idea but not a solution to the problem.
He felt that the story had a lot of interesting ideas but then became standard.