diff --git a/c3cat-bottle-clip/c3cat-bottle-clip.scad b/c3cat-bottle-clip/c3cat-bottle-clip.scad
index a66d7b5..631a697 100644
--- a/c3cat-bottle-clip/c3cat-bottle-clip.scad
+++ b/c3cat-bottle-clip/c3cat-bottle-clip.scad
@@ -32,6 +32,7 @@ $fn = 360;
 
 NAME = "c3cat";
 LOGO_FILE = ""; // empty string is catear model
+FONT = ""; // empty string is for Orbitron font
 RENDER_COLOR_CLIP = true;
 RENDER_COLOR_TEXT = true;
 RENDER_COLOR_LOGO = true;
@@ -64,7 +65,9 @@ scale([0.2, 0.2, 0.2]) {
     scale([5, 5, 5])
       rotate(45, [0, 0, 1])
         bottle_clip(
-          name=NAME);
+          name=NAME,
+          font=FONT,
+          logo=LOGO_FILE);
 
     translate([ 15*5, 0*5, 18*5])
       rotate(-80, [0, 1, 0])
@@ -152,7 +155,9 @@ module logo(logo, rl, ht, ru, width) {
   }
 }
 
-module bottle_clip(ru=13, rl=17.5, ht=26, width=2.5, name="c3cat", font="write/orbitron.dxf", logo="") {
+module bottle_clip(ru=13, rl=17.5, ht=26, width=2.5, name="", font="", logo="") {
+  name = name == "" ? "c3cat" : name ;
+  font = font == "" ? "write/orbitron.dxf" : font ;
   e = 100;  // should be big enough, used for the outer boundary of the text/logo
   rotate([0, 0, -45]) {
     // main cylinder
@@ -219,7 +224,9 @@ module catear() {
  * bottles (like fritz cola, etc.). All parameters are passed to the module
  * bottle_clip(), see there for their documentation.
  */
-module bottle_clip_longneck(name="c3cat", width=2.5, font="write/orbitron.dxf") {
+module bottle_clip_longneck(name="", width=2.5, font="") {
+  name = name == "" ? "c3cat" : name ;
+  font = font == "" ? "write/orbitron.dxf" : font ;
   bottle_clip(name=name, ru=13, rl=15, ht=26, width=width, font=font, logo="");
 }