diff --git a/knock_box_inlay.scad b/knock_box_inlay.scad
new file mode 100644
index 0000000..9c53fe8
--- /dev/null
+++ b/knock_box_inlay.scad
@@ -0,0 +1,30 @@
+// configuration values
+fs  = 5;
+
+
+content = "TM";
+font = "Droid Sans Mono Bold";
+
+difference () {
+  union () {
+    difference () {
+      union () {
+        cube([92,112,109]);
+        hull () {
+          translate([0, 0, 100]) cube([92,112,1]);
+          translate([-0.5,-0.5,107]) cube([93,113,2]);
+        }
+      }
+      translate([3, 3, 3]) cube([86,106,109]);
+    }
+  }
+  translate([-0.6, 56, 90]) rotate([90,0,90]) cylinder(r1=12.7, r2=12.7, h=3.7, $fn=70);
+  translate([89, 56, 90]) rotate([90,0,90]) cylinder(r1=12.7, r2=12.7, h=3.7, $fn=70);
+  translate([46, -0.6, 112]) rotate([0,90,90]) cylinder(r1=25, r2=25, h=3.7, $fn=70);
+}
+
+  translate ([41, 0, 80]) rotate([90,0,0]) {
+    linear_extrude(height=1.0) {
+      text(content, font=font, size=fs);
+    }
+  }
\ No newline at end of file
diff --git a/knock_box_stem.scad b/knock_box_stem.scad
new file mode 100644
index 0000000..7b3450d
--- /dev/null
+++ b/knock_box_stem.scad
@@ -0,0 +1 @@
+cylinder(r1=12.5, r2=12.5, h=92.5, $fn=70);
\ No newline at end of file