diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -20,6 +20,7 @@
     'maniphest.pkg.js' => 'c9308721',
     'rsrc/audio/basic/alert.mp3' => '17889334',
     'rsrc/audio/basic/bing.mp3' => 'a817a0c3',
+    'rsrc/audio/basic/coin.mp3' => '44ef365f',
     'rsrc/audio/basic/pock.mp3' => '0fa843d0',
     'rsrc/audio/basic/tap.mp3' => '02d16994',
     'rsrc/audio/basic/ting.mp3' => 'a6b6540e',
diff --git a/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php b/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php
--- a/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php
+++ b/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php
@@ -99,6 +99,10 @@
         'name' => pht('Bing'),
         'uri' => celerity_get_resource_uri('/rsrc/audio/basic/bing.mp3'),
       ),
+      'coin' => array(
+        'name' => pht('Coin'),
+        'uri' => celerity_get_resource_uri('/rsrc/audio/basic/coin.mp3'),
+      ),
       'glass' => array(
         'name' => pht('Glass'),
         'uri' => celerity_get_resource_uri('/rsrc/audio/basic/ting.mp3'),
diff --git a/webroot/rsrc/audio/basic/coin.license.txt b/webroot/rsrc/audio/basic/coin.license.txt
new file mode 100644
--- /dev/null
+++ b/webroot/rsrc/audio/basic/coin.license.txt
@@ -0,0 +1,3 @@
+https://freesound.org/people/Jocabundus/sounds/678385/
+
+2023, Jocabundus, Creative Commons Zero (public domain dedication)
diff --git a/webroot/rsrc/audio/basic/coin.mp3 b/webroot/rsrc/audio/basic/coin.mp3
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
GIT binary patch
literal 0
Hc$@<O00001

literal 0
Hc$@<O00001