For sale: 

Britax Frontier 85 Booster/Car Seat.  5 point harness up to 85 pounds, or 120 pounds in booster.  Black/gray color.  No accidents, non-smoking home/car.  $40.  More info here:  https://www.amazon.com/Britax-Frontier-Combination-Booster-Rushmore/dp/B0038W0JI0

Baby Bjorn Blue/red step stool.  $5

Baby Smart Cooshee/Booster.  Classic, blue. $20