This is my third time to try to reply!
Here goes again:
Firstly, well done on the beautiful work.
Secondly, I think that at this time of year it will pay to produce more Christmas themed toppers as that is what people are planning for
Thirdly, I would set the price higher. They look like they take some time to make. Last time I was asked to make something for a cause I support I worked out that it was going to take me so long and they were going to get so little for it, it just made more sense for me to make a donation and forget about the middle bit!