They would have to be 'inspired by' a prompt, the rule that applies is this one:

6. Ideally, all work should be freshly created in response to the prompts, but it won't be handbags at dawn if not. We'll just pretend we didn't notice, okay?

We take fanfics and meta up to 1000 words in length, vidlets of one minute or less, fanmixes of up to five songs, all still artwork and picspams/gifspams of up to eight images.

We do have a sister comm, sb_ashtray, that takes everything that doesn't fit our rules, either its too long, another pairing, too late for the current month's prompts etc.