Last year I made a lot of tree decorations for Gdcs’ school Christmas fair - little mini knitted elves, snowmen, fairies, Father Christmases, etc. I wasn’t looking to sell for profit, they were donations, and to make sure they sold I priced them at just £1.50 each, which of course was no reflection of the work involved.
Elsewhere at the fair people who were paying for table space were selling their own decorations etc. but the prices were much higher (I did buy some) but there were an awful lot left at the end. Sadly, unless it’s something extremely special, I’m not sure you can ever really expect a price that reflects the work involved.
This year I’m making much bigger Christmas items, both for Gdcs and as raffle prizes for their school fairs, but again they’re donations. I just enjoy making them, and luckily the yarn I use for such things is cheap!