Auto equip halloween costume

I want mafia to automatically re-equip my mummy costume/wolfman mask/pumpkinhead mask when trick-or-treating. I tried adding unconditional triggers along the lines of "always, equip mummy costume", but couldn't make it work. Do I need a script for this?

Edit: Problem solved, a kind soul provided me with the script needed for this.

I wrote a script that did not work. A kind soul (maybe the same one?) rewrote my script. That script broke with 7772, so I had to make some modifications to make it work again.