Does anyone have great gift ideas for an 11 year old traveler?

My 11 year old nephew will be spending 3 weeks in Europe this summer. He is going as part of a school ambassador program (he lives in Hawaii) and will be visiting several countries. I would like to get him some cool gifts that can be utilized on his trip. I want to avoid the normal cliche travel stuff like neck pillows and fold up blankets LOL. Thanks in advance for any help!