Mixing tartans - yes or no?

[Cygnus]

...and the Macqueens a wolf.

...

Rex,

I always thought that the Macqueens' cheifly crest was a kind of cat (an heraldic tyger), not a wolf; though the chiefly arms do prominently feature wolves' heads, so I could be mistaken.

And thank you for your answer on cap badges and tartans for these clans - that is a question I had been meaning to ask for some time!