Liked the look of the organizer by mAZZING1 (thing 3418593) and the build card slot from jason51873 (thing 393509). Combined the idea together to create this.

Printed on CR6-SE with PETG because it was what I had loaded. PLA would be more than fine for this model.

Creality

CR-X

No

No

0.2

10%

May need to adjust scale slightly to fit wooden pieces due to variations in the wood.

Using TinkerCad I created a group of squares that were the same size/shape/spacing as the original 5 road squares at the top of the piece. Duplicated it and moved the copy to above the holes for the rectangles and changed them to holes. Grouped all of them together with the main model to create a single object with the old holes filled and new holes made. Then created a hole 6.5mm deep and 2.75mm wide the full width of the model. Put it at a 15* tilt to angle the build card at a nice viewing angle. Grouped model and hole together, boom finished product.