Using Value Converters in WPF without having to define them as resources first

Question

Is it possible to use value converters without having to define them beforehand as resources?

Right now I have

Answer 1

Technically I believe you can do this, but the XAML is so horrible that it will make the "lots of trivial resources" approach look like a haven of simplicity and clarity by comparison:

I have not tested this because even reading it makes my eyes water...