Have You Used Hand Drawn Elements to Boost Response?

I'd appreciate people's feelings on their use (and any results you've seen) with hand-written graphic elements in online and offline sales letters, web pages, opt in forms, and so on.

It's been documented in several places online that hand drawn elements can help increase both online and offline response rates by up to 700%.

Now, anything that increases an opt-in or response rate has got to be worth something, and by hand drawn elements I'm talking about asterisks, arrows, underlinings, brackets, circles, call outs, sales buttons, and so on.

Were a new hand drawn graphics product to come along, what might your interest be in using it to help boost your website and sales letter response rates?

Now, yes, it's possible to make these things yourself. But let's be realistic here: when you need legal advice you go to a lawyer; when you need bread you go to a baker: you don't (ordinarily) do things that can be better outsourced to others, yourself, do you?

So suspending the notion of buying a scanner, a graphics tablet, and investing time and energy into making these things yourself, if you're neither creative, nor inclined to be creative, what price might you attach
to a collection of 500 or so, good quality graphics that are totally new and produced by someone with a 25 year background as an award winning graphic designer?

If you've bought hand drawn elements in the past, would you be willing to invest in a similar product that has the added USP of being produced by a direct response marketing-aware professional graphic designer?