January Donation Art: Help me think of a trigger! (Patreon)

Hi Ya'll!  I'm posting this to the $10+ level as you all are the ones who get the donation art :)

I'd like to do a leopard seal transformation this month (it's the cold months, and I haven't done a seal yet as a donation art - and they have a cool looking design!)

BUT - I am having trouble deciding on a scenario/trigger!  Toss me some suggestions and I might pick one :)
I'm looking for a one-shot scenario (not a long, extended situation as those don't lend as well to the format, unless it's a snapshot type) without much background drawings required.