The Jojo Siwa Summer 2018 Box Available Now! Posted by Hello Subscription on May 18, 2018. Subscription Box News / The Jojo Siwa Box News Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification The Summer 2018 Jojo Siwa Box is now available! This box ships late July. The JoJo Siwa Box is brought to you by CultureFly. The box is $30 per quarter, with over $60 worth of items. Are you getting The Jojo Siwa Spring 2018 box?