A.W.
I have twin 1/2 brothers who are 11 and I had the same problem.
My step-mom told me to just get gift cards, which is a great idea. After much thought, I decided to get them all ( Dad, step-mom and two brothers) tickets to a hockey game. I cleared the date with my step-mom, but didn't tell her what it was for exactly and also included $5 ea for concession stand snacks. This way it's a gift for the whole family and it promotes them to have a Sat. evening of together time. Another idea, one year my parents bought my family a zoo pass. It was good for one year of unlimited entry for the whole family. Prices vary by zoo and they would have to live within a reasonable distance to Binder Park or John Ball. Hope this helps!!!!