Sometimes kids just get into the age where they simply have to have a set of walkie talkies. I know because my own kid just came to this point for the second time in his life, now just around 6 years old.
And after some investigation I found that you could get Lego walkie talkies and just from the start I knew this would be a good gift for my kid as he also loves Lego.
These funny and quality walkie talkies can be bought here: Lego walkie talkies on amazon
My kid has a lot of fun playing around and making tricks on people.