If your preteen boy likes workout clothes, you might want to check out Lululemon Like New. For stocking stuffers, I highly recommend Archie McPhee’s (the source of the rubber chicken pictured above).
Another fun idea is to give your kid the promise of a memorable and fun experience with you. I’ve found that it’s helpful to gift tickets for a particular thing, on a particular day. If I give someone in my family gift certificates to the local movie theater, for example, the tickets might get pushed to the bottom of a drawer and go unused. But if I buy tickets to a concert and put it on the calendar, we’ll almost certainly attend. This year, I’m giving our girls tickets to a local Taylor Swift dance party and two reserved nights at a campground in Shenandoah. I’ve printed out the tickets and a map of the campground and wrapped each of them in little boxes. I hope they’ll be as excited for these events as I am!