Welecom Ball Pit for Outdoor and Indoor Use $6.35
Amazon has this cute Welecom(TM) Ball Pit Play Tent for Outdoor and Indoor use marked down from $15.99 to only $6.35 and it ships for free with your Prime Membership (get one here free!) or any $35 purchase. This doesn’t include the balls, but you can pick them up cheap!
Amazon pricing changes frequently so this deal could end at anytime.