diff --git a/making.md b/making.md
index e9a1484..2552c6c 100644
--- a/making.md
+++ b/making.md
@@ -21,6 +21,7 @@
 
 * Frit tray ![Image](./dd75f62871a045217d36e3156fa2fc7e.jpg) 
 * ![Image](./a35a74314775063c5d51232552b5cd8c.jpg) 
+* 5gal water bottle opal extension
 
 ## Things to print