Here are a few examples of what he collects:
* Comic books: This is a common and well-established trait of his.
* Junk food: Shaggy has an insatiable appetite for snacks, especially Scooby Snacks.
* Old clothes: He often wears mismatched and outdated clothing.
* Unusual objects: He seems to collect random things he finds, like strange antiques or oddities.
Overall, Shaggy's collecting habits are a running gag in the Scooby-Doo series, adding to his quirky and lovable personality.