Booze is always a good present for adult Japanese men, and it's even better if it's something local to your area, for example, if there are any whiskeys made locally.

For the man you used to work with, a framed picture of the place you used to work together would be nice, as would a photograph of all his former colleagues.

For the people you don't know, calendars or engagement books with Texas scenes on them (everyone has heard of Texas) are something that anyone can use.

If you have to buy presents for children or teens, college T-shirts or anything else with English written on it are always well-received.