One thing I was considering wasteboard wise for a while was a puzzle arrangement centered on holes for threaded inserts where the pieces either had, or didn’t have a hole and could be swapped in at need — as pieces were cut into they would get sorted into bins based on how deeply they were gouged — when a bin was full all the pieces would get installed and surfaced.
Obviously didn’t bother, instead I’m back to PVC filler strips w/ spacers limited to the cutting area and which are held in place by a single fastener:
Now I just need to remember the next time I’m inserting the spacer strips to just shave off a bit of the angle rather than drill a new hole.