I've found a lot of fulfillment in building tech products/services for friends and family, and making meeting their needs the complete scope of the project, with no intention to release it publicly. I present it as though it's a widely released product, including marketing materials, retail box, printed instruction manual, etc. I enjoy it thoroughly as a creative exercise, and it gives me the opportunity to integrate and combine lots of skills I'm not able to use at work.
I don't make any money doing this, but it scratches the itch I have to build things people will use, and I do enjoy showcasing and promoting my latest projects - and an audience of my (less technical) friends and family is a polite and encouraging one. Definitely less stressful than releasing things to the wider internet. This has brought improvements to my real job, where I'm finding myself more comfortable presenting and promoting my achievements.