Peg + Carabineer
The peg often lacks carabineer functionality when it should be reliably attached to e.g. a drying rack all the time. Letting a carabineer fix something that doesn't fit its gate would be nice as well. Thus having peg and carabineer functionality in one product would be really great.
The solution logically comes out of the problem - it just combines a peg and a carabineer as shown on the pictures.