Are they back packing or is it a bit higher budget?

If they're back packing, keep the oakleys yourself because he'll get the same ones in Thailand for a quid and won't feel so guilty when he leaves them in a hostel somewhere.

The thing I used every day when travelling was a nice penknife my sister got me. And there would be a lot of change out of £70 which they would probably appreciate more in beer tokens when their money runs out