hi! My 3 kids are the only grandkids on both sides so I hear ya. What's worse is that 2 of them have b-days the week of Thanskgiving and 1 is the weekend after new years. So we get bombarded. They're not 10 but what I did was created a wish list for them on amazon and walmart (my MIL only shops at walmart) with a variety in prices. In the description part, I put their sizes for clothes, TV characters they like, Mickey Mouse, Little Einsteins, etc. I've asked everyone to stick to the list to try to avoid duplicate stuff. I've also verbally told the grandparents that a few toys is fine but if they wanted to spend more money to buy them bonds or contribute to their 529 plan.