diff --git a/.config/fish/functions/mkfish.fish b/.config/fish/functions/mkfish.fish
index a78e3f19..51c08428 100644
--- a/.config/fish/functions/mkfish.fish
+++ b/.config/fish/functions/mkfish.fish
@@ -1,4 +1,8 @@
 function mkfish --description 'Make an executable fish script'
+    if test (count $argv) -eq 0
+        echo Minimum one argument.
+        return 1
+    end
     # each arg is a script to create
     for name in $argv
         printf '#!/usr/bin/env fish'\n\n"echo $name" >"$name.fish"
diff --git a/.config/waybar/scripts/toggle-sink.fish b/.config/waybar/scripts/toggle-sink.fish
new file mode 100755
index 00000000..18b63f5e
--- /dev/null
+++ b/.config/waybar/scripts/toggle-sink.fish
@@ -0,0 +1,11 @@
+#!/usr/bin/env fish
+
+set -l sinks alsa_output.usb-FIIO_FiiO_USB_DAC-E10-01.analog-stereo alsa_output.usb-Burr-Brown_from_TI_USB_Audio_DAC-00.analog-stereo
+set -l current (pactl get-default-sink)
+
+for i in sinks
+    if test "$i" != "$current"
+        pactl set-default-sink "$i"
+        return 0
+    end
+end