Lambda the Ultimate

I'm looking for good non-brace syntax for a single argument method call. I can't use space since it is already taken for infix operations (e.g. x + y vs. draw circle(...)). I was thinking about using hash; e.g. draw#circle(....) where circle is a method that produces a circle shape to draw. Are there any better options that have been tried before?

As for why I don't just go with braces, I'm looking for a special syntax to capture "verb on what" in a way that can more easily be read left to right without nesting.