Many small spooky businesses are based outside of the UK or Europe, especially as Halloween is celebrated more obviously in the USA. Delivery can take a while and import costs to the UK can be expensive, but there are some really lovely items to be had. Here I'll list businesses I have bought from.
I have already written an article about Spooky Small Businesses (UK, Europe). Listed below are other small businesses around the world I have made purchases from. Most are run by just one or two people, but they sell lovely unique items, often handcrafted. If they have a website, please consider buying directly from there instead of Etsy to help save them a lot of money on seller and compulsory advertising fees.
Orders imported from outside the UK will likely be subject to expensive VAT and Royal Mail handling charges. Also, given the current worldwide situation with the Coronavirus, some shops may be delayed in shipping or temporarily closed. If you like their items please consider following them on Instagram, or saving a link to them for future reference.
Some UK-based stores stock spooky items they have already imported, saving you the wait and the worry about import costs; one I can recommend is October 31st.