Cool projects. One particular thing struck me, as my partner owns a laser cutter as well. "The backing and mat are made of birch plywood". Here in Europe, 6mm thick birchwood rectangles (60x90cm) are 36 euros now, which used to be 3 euros.

Pretty sure I relate to the way you've described these as 'unremarkable'. But: they are very cool, and thanks for posting them. (Also: we're by definition remarking on them here :P)