Although routinely eaten in Peru, guinea pigs are given fancy dress elsewhere.
The Guinea Pig Halloween Costumes are $7.00 each from PetSmart.
There’s also a tiny witch hat for $3.99 in case your piggy doesn’t want to wear a full-body costume.
Buy: Guinea Pig Halloween Costumes
https://www.petsmart.com/featured-shops/halloween/guinea-pig-costumes/
