ooh thanks for looking. I don't mind second hand, though we haven't seen anything on ebay that was quite what we wanted. I don't mind buying a Christmas cardie second hand in a way as they don't get worn much, and it would be almost new though there is a moth risk with natural fibres.
The last 2 years her Christmas jumper was an acrylic one from Matalan with added fairy lights.
She doesn't really like wearing jumpers though, prefers cardies that you can unbutton when you get too warm and that fit over dresses.
SIL designs Christmas jumpers so we got all ours as samples in about April. All the buyers want them to design down to cost rather than up to standard: adding seams/edging and buttons/buttonholes adds far too much to price; similarly not enough people would pay for cotton or wool. This is even more applicable when you add expensive extras such as sequins or lights.
Fwiw I've had good festive jumpers in natural fibres from Asda and Peacocks in the past.