Simply trashing a technological item is straightforward, but how would you go about more detailed interference?
Possible examples:
causing a mechanical watch to run slow or a mobile phone to burst into flames.
While making a car cease functioning is straightfoward, how about ensuring that the brakes fail?
A character who only has Mana Static is going to want to play with the implications of his power, while a more powerful character could create spells to focus or refine what can be done.
Suggestion?