diff --git a/buildcfg.txt b/buildcfg.txt
index b88fa545..e5f6fb44 100644
--- a/buildcfg.txt
+++ b/buildcfg.txt
@@ -2748,4 +2748,8 @@ FCGRATE1
 FCGRATE2
 FLAT5_6B
 FLAT5_6C
+SFLR4_1
+SFLR4_4
+SFLR5_1
+SFLR5_4
 
diff --git a/flats/sflr4_1.png b/flats/sflr4_1.png
new file mode 100644
index 00000000..cb60383b
Binary files /dev/null and b/flats/sflr4_1.png differ
diff --git a/flats/sflr4_4.png b/flats/sflr4_4.png
new file mode 100644
index 00000000..8c010663
Binary files /dev/null and b/flats/sflr4_4.png differ
diff --git a/flats/sflr5_1.png b/flats/sflr5_1.png
new file mode 100644
index 00000000..a608359b
Binary files /dev/null and b/flats/sflr5_1.png differ
diff --git a/flats/sflr5_4.png b/flats/sflr5_4.png
new file mode 100644
index 00000000..c900fe3e
Binary files /dev/null and b/flats/sflr5_4.png differ
diff --git a/lumps/textures/textures.cfg b/lumps/textures/textures.cfg
index c42678cc..fc3846ad 100644
--- a/lumps/textures/textures.cfg
+++ b/lumps/textures/textures.cfg
@@ -3633,7 +3633,6 @@ ZZWOLF7B        128     128
 ZZWOLF8         128     128
 *   WOLF8       0       0
 
-
 COMPUTE4        256     128 ; PLANET1 variant in computer.
 *   COMP04_5    0       0
 *   COMP04_5    0       64
diff --git a/patches/snak5_1.png b/patches/snak5_1.png
new file mode 100644
index 00000000..0ff63b52
Binary files /dev/null and b/patches/snak5_1.png differ
diff --git a/patches/snak6_1.png b/patches/snak6_1.png
new file mode 100644
index 00000000..67c69f09
Binary files /dev/null and b/patches/snak6_1.png differ