Festival sweet boxes have started arriving and it's only mid-October

Three boxes have come in this week from relatives and my partner's office contacts, and Diwali is still weeks away. Last year the kids had sweets every day for nearly a month and the 5 year old's sleep went for a toss. This year we're trying something simple. One box stays out, the rest go to the building staff and a couple of neighbours, and sweets are after lunch only, not after school or at night. The 8 year old has accepted it. The 5 year old is negotiating like a lawyer. How do others get through the festival weeks without becoming the family that banned sweets?