What should I ask for from Japan?

My mom is going to be going to Japan with my aunts and uncles in a couple of days. She very kindly offered to get me some things while she was there ^-^ What do you think I should ask for? My first thoughts were doujin, but I don't think that would be a good idea, LOL

LOL!
You should get cool food or collectibles.

Hmm...I would suggest something long lasting that you can treasure. Oh I know! Jewelry or some sort of accessory like a necklace or a bracelet. I always think of my time in New York with the watch I picked up there. Make sure it's something you'll actually wear otherwise it'll just gather dust.

Genuine hand made kimono? Those can be a little expensive though. A small trinket like Proud Beast mentioned would be good too.

OR...
http://muza-chan.net/japan/index.php/blog/must-have-souvenirs-travel-tips

I honestly don't have much to add. What Wallace said is pretty much right, but if you truly do want something than I would go with the list K3nsh1n listed because there's some nice souvenirs on that list if you want something authentic from Japan. In the end it's up to you on what you want the most.