diff --git a/make/strings.js b/make/strings.js
index d027427..dfcdff5 100644
--- a/make/strings.js
+++ b/make/strings.js
@@ -28,4 +28,11 @@ make.strings = {
 
     return s;
   },
+  digitsHex: function (n) {
+    let s = '';
+    while (n-- > 0) {
+      s += (Random.number(16)).toString(16);
+    }
+    return s;
+  },
 }
diff --git a/make/types.js b/make/types.js
new file mode 100644
index 0000000..6e2c2bf
--- /dev/null
+++ b/make/types.js
@@ -0,0 +1,14 @@
+make.types = {
+  random: function() {
+    return random.item([
+      "true",
+      "null",
+      "(new Object())",
+      "undefined",
+      "{}",
+      "[]",
+      "''",
+      "function() {}"
+    ]);
+  }
+}