My girl friend and I have 13 month olds and I found a sippy cup strap with a suction cup and it is awesome! We both love it and it works everywhere. Stick it to the high chair tray, car window or take the suction cup off put it on the stroller, car seat, wooden high chair....anywhere!!! I think it's definitely a must have once the little one starts tossing everything from the high chair!!! I just googled it and found one!