public static TinkerGraph createKitchenSink() {
        final TinkerGraph g = getTinkerGraphWithCurrentNumberManager();
        generateKitchenSink(g);
        return g;
    }
Creates the "kitchen sink" graph which is a collection of structures (e.g. self-loops) that aren't represented
in other graphs and are useful for various testing scenarios.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerFactory.java