u/Appropriate_Melon

My search first took me to this sub, and nobody seemed to be able to find it on previous posts, so I thought I'd post the link for those who are curious:

https://paypayfleamarket.yahoo.co.jp/item/s1152748571

If you don't know what I'm talking about, Togashi refers to art he did for a trading card game Dragon Kingdom at the end of Chapter 68 of the manga.