Jung Yong Hwa has some effects built into his guitars.
- Seymour Duncan SFX-10 Deja Vu Tap Delay with BBD Guitar Effect Pedal
- Visual Sound Route 88
- Visual Sound Son of Hyde
- Bass RC Booster
- Visual Volume
It's pretty entertaining to read about these piece of arts. Pleasantly surprised.
I personally would add the Whammy , however great list ;)