diff --git a/tool/src/aurora_iconset_builder/assemblicon/artio.py b/tool/src/aurora_iconset_builder/assemblicon/artio.py
index 186a7a3..f666201 100644
--- a/tool/src/aurora_iconset_builder/assemblicon/artio.py
+++ b/tool/src/aurora_iconset_builder/assemblicon/artio.py
@@ -1,4 +1,5 @@
 import logging
+import shutil
 from pathlib import Path
 import PIL.Image
 from .utils import Artifact, ArtifactFile
@@ -23,3 +24,7 @@ def load_artifact(p: Path) -> ArtifactFile:
 def save_artifact(art: Artifact, p: Path) -> None:
     logging.info("Saving artifact: %s", p)
     art.save(p, format="PNG")
+
+
+def dup_artifact(src: Path, dst: Path) -> None:
+    shutil.copyfile(src, dst)
diff --git a/tool/src/aurora_iconset_builder/assemblicon/context.py b/tool/src/aurora_iconset_builder/assemblicon/context.py
index 588c168..9c246d6 100644
--- a/tool/src/aurora_iconset_builder/assemblicon/context.py
+++ b/tool/src/aurora_iconset_builder/assemblicon/context.py
@@ -285,6 +285,15 @@ class AdvancedContext:
             dst = self.__fd_artifact(hw, kind, name)
             artio.save_artifact(thumbnail, dst)
 
+    def dup_fd_artifact(
+        self, src_kind: FdContext, src_name: str, dst_kind: FdContext, dst_name: str
+    ) -> None:
+        for hw in _FD_THUMBNAIL_HWS:
+            artio.dup_artifact(
+                self.__fd_artifact(hw, src_kind, src_name),
+                self.__fd_artifact(hw, dst_kind, dst_name),
+            )
+
     def __win_artifact(self, kind: WinCategory, name: str) -> Path:
         return self.__context.output_artifact(_ART_WIN, str(kind), f"{name}.ico")
 
@@ -299,6 +308,14 @@ class AdvancedContext:
         )
         artrender.render_ico(art, self.__win_artifact(kind, name))
 
+    def dup_win_artifact(
+        self, src_kind: WinCategory, src_name: str, dst_kind: WinCategory, dst_name: str
+    ) -> None:
+        artio.dup_artifact(
+            self.__win_artifact(src_kind, src_name),
+            self.__win_artifact(dst_kind, dst_name),
+        )
+
     def __mac_artifact(self, kind: MacCategory, name: str) -> Path:
         return self.__context.output_artifact(_ART_MAC, str(kind), f"{name}.icns")
 
@@ -311,4 +328,12 @@ class AdvancedContext:
         logging.info("Saving macOS-only artifact with kind %s and name %s.", kind, name)
         artrender.render_icns(art, self.__mac_artifact(kind, name))
 
+    def dup_mac_artifact(
+        self, src_kind: MacCategory, src_name: str, dst_kind: MacCategory, dst_name: str
+    ) -> None:
+        artio.dup_artifact(
+            self.__mac_artifact(src_kind, src_name),
+            self.__mac_artifact(dst_kind, dst_name),
+        )
+
     # endregion