I didn't implement this because it stopped being needed, but a text to print converter for my hearing impaired and non-techie elderly mom. Basically an email gateway running on VPS so if she got an email or text from a family member, a raspberry pi in her bedroom would immediately print out the message on a receipt printer where she would see it. I was going to use a cheap thermal printer but another family member objected (I guess reasonably) to the toxic crap in thermal paper, so I found someone selling a still affordable impact receipt printer on craigslist. Nothing actually happened with this, but I liked the idea.