One slice, pepperoni, stitched in needlepoint. It is the least serious thing you can hang off a bag and that is exactly the point.
The pizza charm works on a work tote precisely because it undercuts one. It clips on with a lobster clasp, so it moves to a backpack, a gym bag, or a set of keys in seconds, and the needlepoint texture keeps it looking made rather than molded.
Kids love it, which makes it a good pick for a backpack, but the stitching is grown up enough that it does not look out of place on a leather bag either.
Cluster it with the taco and the ranch for a full snack situation, or pair it with a martini for the food-and-drink combination that most accurately represents a Friday.