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's the one I made for Fathers Day 2020!
This prints as one single piece and as an added bonus the raised name on the side 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)
Printer:
FFCP
Rafts:
No
Supports:
No
Resolution:
.2mm
Infill:
20%
Filament:
Any PLA
Any
Notes:
210C Extruder
45C Bed
55 mm/sec
100% cooling fan
Category: Keychains