I make gimbal keychains for most holidays as a fun "business card." They're great small pieces that can easily show off some of the things you can do with 3D printing.

Here is the blank gimbal with the CAD files for you to make whatever design you'd like!

This prints as one single piece. I like to add raised text on the side works which works great for embossing and stamping. I typically use the beaded metal chains for the keychain part, specifically this one https://amzn.to/3PDX4YD (affiliate link)