Scale restricted dressing up

1. There does not appear to be a category for fancy-dress costume rules?

2. Mrs P. was passing through Glasgow today and saw a group of people at the bus station; one was dressed as a hamster, one as a Mexican and one as a banana. I appreciated the incongruity of this, and considered that it would be a lot less incongruous if the group had all dressed as things to the same scale.

So, for instance, at a scale of 8:1, our group could have been a rat, a banana and a mobile telephone. Conversely, at a scale of 1:4 we could have had an elephant, a yacht, and a garden shed.

The rules could specify whether animate objects are permitted (if one wished to rule out hamsters and rats), or what latitude in scaling would be permitted (I suggest 10% as a generous limit).

Also a very strict rule would be to forbid dressing up as a scale model of something else. No attending the 1:100 party dressed as "an huge enormous million-to-one-scale sculpture of a virus"