Fruit either dried or Fresh.

candies you have to be careful as many candies are no longer halal and it is hard to keep up with the ones that have not recently begun adding haram ingrediants.

Pasteries from a Mid eastern store is always a good choice. Baklava seems to be a world favorite.

Several small age appropriate low cost toys seems to always go good. My grand kids get the el-cheapo dollar toys, usually 2 or 3 each, but I have 14 grand kids and I am a cheap skate.