Heh, I've had a similar project on my back burner for a long time having to do with reusable Keurig filters. There are a ton of them on the market, and they all have the same fundamental design flaw: they are just a filter, without the surrounding housing with a small hole designed to hold pressure. So they all make weak coffee (and a huge mess). I would happily sink some money into the design and manufacture of a filter that actually worked. I think it could even be a money-maker, though I'm mainly interested in it for my own personal use. But I have no clue where to even begin looking for someone who could make such a thing. If anyone here has a clue I'd appreciate hearing about it.