USPS issued their first Halloween stamps ever. I am surprised they haven't cashed in on this very big tradition before - I'll be interested to see if they continue with Halloween issues in the future. I used them on stamps for Jean's October exchange on homemade envelopes 831 and 832, with a bonus envelope 830 to Eric.
And using some Halloween-themed bottle labels Colleen sent me as an MMSA bonus, I finished the rest of the swap with these: