The wonderful world of open source design means not having to re-invent and redesign structures for standard servos.
A quick thingyverse turns up a good set of starting points:
- Versatile Servo Bracket System
- pan and tilt bracket
- pan and tilt bracket kit
- SpiderBot hexapod
- Mini Servo Mounts
The Versatile Servo Bracket System looks great, going to print one to try it out.