It is possible to construct topological shapes via knitting. In HK this may be done on circulars. One out of many tutorials may be found here, and the mathematical knitting is a very good, extensive resource.
These are my first two attempts at needle felting on random swatches remaining from machine knit experiments. Both pieces measure “postcard” 4X6 inches. The scale restriction requires thinking in a new way for me, and provides a different way to play with my yarn stash and found objects. It is not clear if any of these techniques will be incorporated into my clothing and accessories, or simply be an end in themselves. Collage lace with some of the same fibers is also on my list of “must try”.