I would have to say that the most unusual pets I had were the Giant African Millipedes. They were all black and can reach up to 10 inches or more in length but mine were smaller. They are easy to keep and move slowly. When placed on your arm they feel like a heavy, long toothbrush. They eat vegetable matter but also some soft dog foods. There are various millipedes your can purchase and some are colorful. They are harmless pets and curl up when frightened.