This is the strangest sextoy that I could imagine.  If you or your special someone has a secret fantasy to screw an octopus, then this Octopenis is for you. 

Flesh-colored 7.5 inch dildo with an octopus head where the balls are and tentacles wrapping around the shaft of the penis. Perfect for your undersea sexual fantasies! Made from phthalate-free PVC. Persons with allergies to latex, PVC, or urethane should not use this product. Novelty use only. Measurements: Total Length: 7.5 Inches Insertable Length: 6 Inches Circumference: 7.0 - 7.5 Inches

See it HERE