Invited to a Japanese house party. What can I bring to Wow the guests?

Invited to a semi-annual house party at my Japanese neighbors (40's). Unfortunately I'm having the hardest time deciding what to bring. They said bring whatever you want so it is up to me (you) to figure out what to bring. So what can I bring for under 20,000 that the guests (12) will find interesting, memorable, and/or delicious. (please limit it to food items alcohol has already been sourced)