When my son was in elementary school, he liked to go to trade shows (yes, they charge admission, but it was entertainment for him). I’d stock up on a year’s supply of free pens, note pads. The Home Builder’s Show was always the best. Plus, it was educational for him. We’d go at non-peak times, so the exhibitors had time to talk with him. My kid had a great time and IYAMCHEAP!