OP-1 synthesizer manufacturer Teenage Engineering doesn't want to ship you replacement knobs and buttons for your instrument. Instead, they've uploaded printable shapefiles to Shapeways and have asked their customers to simply download them and print them on a nearby 3D printer as needed. This appears to be the first time a manufacturer has taken such a step, according to a Shapeways blog-post. Here's the official statement from Teenage Engineering:
We work hard to make our OP-1 users happy with free OS updates and added functionality. But sometimes we fail. As some have noted, the shipping cost of the OP-1 accessories is very high. This is because we can't find a good delivery service for small items. Meanwhile, we have decided to put all CAD files of the parts in our library section for you to download. The files are provided in both STEP and STL format. Just download the files and 3D print as many as you want. Next fail is the OP-1 manual update. We are almost there...we promise it will be ready sometime next week. Thank you all for your patience, we promise to work even harder in the future to make you happy.