I had seen some in B&M last time I went in, but they didn't have any today 😢
Wilko didn't have anything suitable & neither did Primark (they did have some dip bowls that would do, though). The only other place I can think of is the bigger, out of town, B&M but I cba to go out that way.
It's not the end of the world if I don't get any, I'd just got it in my head to have a nicely set table for a change.