It depends on if you are talking about girls or boys. A lot of girls and boys these days play Video Games. Other than those you can check the sources and related links below for non-video game based game ideas for young kids.
Clothes,electronics 'me' time you get it
you need to thing of what he likes personaly and try to get as close to that as possible
make up a trust fund for him or get him a whole load of toys
Trying to come up with original Christmas gift ideas each year can be wearing. Thankfully there are websites out there geared exclusively to Christmas gift ideas for family and those we don't know very well. Since your nephew is 10, try the toy websites for some wonderful Christmas gift ideas.
Stuffed animals, tricycle, action figures without detachable parts.
A pair of high heeled black patterned leather boots!
There are many gifts that a 7 year old girl might enjoy. Some gift ideas include a bike, skates, dolls, craft kits, and video games.
Beer tokens. Unless he is tee total in which case Video game vouchers, Cheese or a stripper :)
a heat necklace a bracelet, or a gift card to like hollister of abercombie or aroepostole..
i-tunes gift cards!!!
There are severl different wonderful choices but 13 year old boys usually like gift cards or clothes from West 49, Hollister, Abercrombie or Aeropostale.
It depends if you are talking about girls or boys as their interests will be very different. Both girls and boys these days do enjoy video games and certain sports. So gifting them those could be useful. You should also check out some indoor game and toy gift ideas in the links in the sources and related links below for some great gift ideas.