Bounce U. Get open bounces at Bounce U at 8922 S. Memorial today at 1:30pm and Friday at 11:30am and 3pm. Kids under 5 can bounce on Friday at 10am, and there's a cosmic bounce (read: a neon bounce in the dark) set for 8pm Friday night. All bounces are about $7 ($8 for the cosmic bounce) per kid, and be sure your kiddos wear socks.