Can I do needlepoint which I enjoy on Rosh Chodesh?
Ideally one should refrain from needlepoint on Rosh Chodesh. One may be lenient on the night of Rosh CHodesh and on the first day of a two day Rosh Chodesh. Some rely on lenient opinions that light work done for enjoyment are permissible on Rosh CHodesh.
SHulchan Aruch Orach Chaim 417:1, Mishna Brura and Biur Halacha ibid.