Check out this Summer Infant Booster Seat. It has 3 adjustable positions. The tray is dishwasher safe. It has 3-point harness strap to keep baby secure. At this price, it might be worth getting this seat for a grandparents house if you already have one.
[amazon_link asins=’B000JVXZF2′ template=’ProductAd’ store=’yares-20′ marketplace=’US’ link_id=’5a05a0d9-4ce5-11e8-8962-3d2dc0ea2062′]