The Doctor better watch out! These robots are invading bedrooms everywhere. Combining ribs and knobs to conquer your lust. Suggest printing at .2 mm layer height or better. Uses a silver bullet type vibrator. Due to variations in printers if you find the vibrator is loose try using some electric tape to fill the gap. Print with supports.

133 mm tall by 51 mm widest diameter, vibrator hole: 18 mm diameter by 60 mm tall