Here are some modification examples for WX5 from online.
1) Profession look : innovated sticker cover by Eddie Davis
2) Functional modification
- external key swtich, wireless midi and charging stand
- bigger thumb hook, added button for easier pressing, wireless midi
3) Real feeling ?
4) Here are my WX5 modification
- Bell with Hot hand midi motion controller
- Panda midi wireless transmitter
- Extra button on one key
- Closed system : 3 D printer designed plug for drainage whole