I mentioned Owls above. You wont believe what it is... just clipart in a nice easel book form. I'm not joking, its just page after page of clipart, accompanied by a manual and 20 page copyright warning booklet.
The thing is Pearson has convinced governments, schools, charities, hospitals etc that this system is the best way to diagnose speech issues. My wife and a lot of her colleagues would beg to differ.
The best way to improve the status quo on a case-by-case basis is to introduce competition, say by developing a better product, marketing it well, and basically out-predating the theretofore market predators. The marketing is easy if you can get enough momentum behind it:
“FooCorp wants to sell you these materials for $absurd. We made these better alternative materials. You can print the basic set yourself for free, or order any of our wide, high-quality selection, starting from $reasonable.”
I don’t think there is a general solution to the underlying cause, though.
This is exactly the kind of thing I'd love to see China come in and drive the price down to commodity levels on.
That said, I doubt one could go at it alone with no support or with only a grant -- building up mind share, fighting off BS patent threats, and doing enough sales to break even on these non-development costs aren't the sort of things that a government/ngo grant will typically support. And even if you could find the money, you'll still need access to a network of experts.
Someone should setup a fund that force-multiplies government/NGO grants for societally beneifical OSS with funding and access to expertise for these other things (legal/marketing/etc.). The aim could just be breaking even on non-grant-funded costs by selling support/branding/etc. to institutional players like hospitals and large chains.