The Academy of Historical Arts does not recommend or condone the use of made-up heraldries in club logos or any artwork on behalf of the organisation or its affiliates. Heraldries that have been registered through the Lord Lyons Court in Scotland (or the appropriate authority elsewhere in the UK) are perfectly acceptable as these have followed due legal process.

In Scotland, it is illegal to use or claim heraldry unless it has been registered through due legal process. For more information about this topic, please see this blog article by Ben Kerr on the subject:

"Family Heraldry" article on Encased in Steel