diff --git a/cmcguinness/main.go b/cmcguinness/main.go
new file mode 100644
index 0000000..830a3b3
--- /dev/null
+++ b/cmcguinness/main.go
@@ -0,0 +1,17 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The cmcguinness tool displays a random number.
+package main
+
+import "fmt"
+
+// randomNumber implementation sourced from https://xkcd.com/221/.
+// chosen by a fair dice roll.
+// guaranteed to be random
+const randomNumber = 4
+
+func main() {
+	fmt.Printf("Your random number of the day is: %v", randomNumber)
+}