Get a bunch of anime fanboys over here (to Japan)in a low-cost hotel, take them to a few animation or video game studios with an English speaking tour-guide. Afterwards take them to a karaoke parlor with some paid local female college students (who're studying English) and let the girls entertain the nerds- it would be like working in a hostess bar except that the customers could easily be too young to drink and they'll be way too awkward and nerdy to try groping the girls, and if they tried they would expect the girl to smack them with a mallet or something.

Give them some freebie kitch of their favorite characters that costs about 500Y to make but is LIMITED EDITION so they'll love it and charge them a few thou for the trip.