diff --git a/junk-drawer/demo.js b/junk-drawer/demo.js
new file mode 100644
index 0000000..ff7f089
--- /dev/null
+++ b/junk-drawer/demo.js
@@ -0,0 +1,17 @@
+"use strict";
+
+const dm = require("../");
+
+let SomeItem = dm.createType("SomeItem", {
+	data: dm.string()
+});
+
+let SomeType = dm.createType("SomeType", {
+	values: dm.mapOf(dm.string(), SomeItem)
+});
+
+let instance = SomeType({
+	values: dm.guard([dm.string(), dm.number()], dm.boolean(), function (str, num) {
+		return true;
+	})
+});