Hi all, I was thinking of trying myself on some woodwork to make something akin to a sticky brick, but with different angle, proportions etc. So have a few questions about materials - the o-rings used in sticky bricks etc, are they generic or special high temp stuff? From my current plans I'd need them in different sizes, so was wondering if that kinda stuff can be sourced via amazon or something similarly simple. Also wondering about the little magnet discs - I presume they are the generic neodyn ones you can find all over the place?