If one were to arrange fridge magnets of letters to spell G-d's name, what are the halachic ramifications of rearranging them (erasing)?
If the magnets were small dots, rather than letters, but were arranged closely so that it still displayed G-d's name, what difference is there to the above?
The former can be likened to writing letters on small pieces of paper, before sticking them down together, and the latter can be likened to the atoms that make up normal handwriting, or a dot matrix printer.
(This question is similar in nature to e-ink.)