Perhaps Specifically Writing Out
Code:
Held in Hand Modifier:
121d8fe6 0000xxxx
(replace xxxx with any 4-digit hand-held item hex code e.g. Golden Axe: 1373)
Code:
Shirt Modifier
121d8fe8 0000yyyy
(replace yyyy with any 4-digit shirt item hex code e.g. Big Bro's Shirt: 11CD)
Code:
Accesory Modifier
121d8fea 0000zzzz
(replace zzzz with any 4-digit mask item hex code e.g. Big Bro Stache: 1451)
Also you may want to try 121d8fec and 121d8e4 as I suspect this will be the hat (but that is a total guess so I suggest you make a save of your game or use a legally dumped ROM of your card)