What can't you try and sell American anime/manga fans? Note I'm not asking what American otaku aren't willing to buy: that's actually a long list, one with “anything that looks old” at the top.
「Suicaのペンギン」紀ノ国屋“最後”のグッズ登場!エコバッグを背負ったマスコット☆
In NYC, Sakura Matsuri is an Otaku Event
【TGS2026】ネクソンブースで『マビノギモバイル』『ファレイドリア』の世界へ! ティルコネイルと黄昏館がホール7・C04に出現