The Sparkling Santas were issued in 2018, and I have received a couple this year. One has the new wreath holiday postmark, and one has last year's postmark.
The secular Christmas stamps and souvenir minisheet from USPS featured Santas taken from vintage Coca Cola vignettes. Did you know that before Coca Cola 'branded' Santa in red and white that his outfits were in various different colors? I used the souvenir sheets on my December PTEX envelopes. And, since it is Christmas, I even added a little decorative writing - using Jean's very forgiving wrought iron letters.
PS I have to confess I find the Sparkling Santa stamps creepy! Despite that, I hope Santa was good to you this year.