Genuine question. Where can I get this fit?

https://preview.redd.it/vniouwce94gh1.png?width=558&format=png&auto=webp&s=e52156ab5eab449e5359f2f03b503e3747e462a6

I love the shorts, shirt, miami episode (S7E4 The Worst Stan) and my friend's birthday party is coming up soooo ;) ... I couldn't find any great matches for the shirt, the best being an Ed Hardy "Dragon Skull" one. Does anyone know something closer to the show?