diff --git a/boxes/generators/__init__.py b/boxes/generators/__init__.py
index 3e9a29d..2ccea5f 100644
--- a/boxes/generators/__init__.py
+++ b/boxes/generators/__init__.py
@@ -26,6 +26,7 @@ ui_groups = [
     UIGroup("Shelf", "Shelves"),
     UIGroup("Part", "Parts and Samples"),
     UIGroup("Misc"),
+    UIGroup("Unstable", description="Generators are still untested or need manual adjustment to be useful."),
     ]
 
 def getAllBoxGenerators():
diff --git a/boxes/generators/rotary.py b/boxes/generators/rotary.py
index 6022309..3cd0d53 100644
--- a/boxes/generators/rotary.py
+++ b/boxes/generators/rotary.py
@@ -83,6 +83,8 @@ class Rotary(Boxes):
 
     """Rotary Attachment for engraving cylindrical objects in a laser cutter"""
 
+    ui_group = "Unstable"
+
     def __init__(self):
         Boxes.__init__(self)
 
diff --git a/boxes/generators/silverwarebox.py b/boxes/generators/silverwarebox.py
index 22fbea7..8b3e600 100755
--- a/boxes/generators/silverwarebox.py
+++ b/boxes/generators/silverwarebox.py
@@ -21,7 +21,7 @@ class Silverware(Boxes):
     """Not yet parametrized cuttlery stand with carrying grip
 using flex for rounded corners"""
 
-    ui_group = "FlexBox"
+    ui_group = "Unstable"
 
     ####################################################################
     ### Parts