At Target this Disney Frozen 2 Playland With Balls is just $8.99, REG $29.99. This inflatable set comes with 20 balls perfect for little kids to play in. You can additionally purchase more plastic balls online.
This is an in store only clearance and may not be at every store. YMMV. Search your local store using DCPI: 091-15-9645. Remember to keep checking back at your store often