These stone-textured boxes are compatible with nine different sliding lids, each featuring a unique Celtic knot. Prints easy, no supports needed.

Of the hundreds of knot configurations possible on a 2 x 3 grid, the nine knots selected here are the only ones that are both single-band and symmetrical.

See here for video: https://youtu.be/lIEAA5Up8nQ

See here for stable downloads:

Set 1: https://social.thangs.com/m/595845
Set 2: https://social.thangs.com/m/595851
Set 3: https://social.thangs.com/m/595854