Assorted Household Spacers

Been moving into a new place, and I keep finding things that don't quite fit. These can all be fixed by fabbing small parts! ABS fabbed pieces have tremendous compressive strength -- with 0.3 infill grids I've tested mine past 180kg with no permanent deformation.

- The 26x19mm spacer holds my closet shelving rails away from the wall, since the tops are screwed into a 3/4" board the previous owner mounted. The centers are sized for a #12 screw, which in my case is a #12x2 driven into the st