Snowflake Challenge #3 - AUs

Put some favourite characters into an AU, fuse some favourite canons together, talk about your favourite AU/fusion tropes, or tell us why AU/fusions aren’t your cup of tea.

My favourite recurring AUs are the Ocelot, Mouselet, Ferret, Sloth, Aemelia Vole and Poley the Moley who join Sherlock Holmes and Dr Watson in 221B Baker Street, for the ACD Holmes 'verse: Mouselet Saves The Day and werewolf!Lucas from Spooks (MI5) Party Games

I write less fusions, although I wrote one recently, which has ACD Holmes, the Ferret, Tigger (Winnie-the-Pooh) and a chimney sweep: Up Where the Smoke is All Billered and Curled

All three of the above were written for my Twelve Additional Days of Christmas gift fics, and my other major source of AUs is whatif_au for which I have written several Hamlet (Shakespeare) AUs - the characters seemingly being perfect for AUs.  I do recommend this community for any fans of AU.