RAYNOX HD 6600PRO 43 mm Wide Angle Converter Lens:
Used maybe half a dozen times on a Canon HG10; no signs of it. Asking $100.00 USD
PELICAN 1120 Protector Case:
Used a decent amount of times, the only way you can tell is that the foam has been cut to fit a Canon HG10. Asking $20.00 USD
NOTE: I'm only dealing with buyers within the US.