Tony Taka and Carnelian have lent their dojinshi talents to developing beautiful keyboards. They have teamed up with E-Junex to give every anime fan exactly what they didn't know they wanted. They are a little pricy, but for the hardcore, it is a moderate price to pay.
If you can read Japanese, check out this page for more information: https://www.etsu.jp/etsu_shop/200906/.
If you can't, then check this one out: http://news.cnet.com/8301-17938_105-10314495-1.html
