A safe and simple predicament bondage game to play by yourself requires nothing more that a three foot long piece of rope, string, or ribbon. Tie each end around one of your wrists so that there's a good length between them. Less than five inches and more than two feet will make the game harder, so find a length that give you the challenge you want. Once your wrists are securely tied, the fingers of one hand play with your needy clit while you suck the fingers of the other like they were the last cock on earth. The challenge, and thus the fun, is that you must keep the string connecting your wrists perfectly taut at all times. Any time you introduce the slightest slack into the cord, your hands switch places.