Consider this artistic rendering of the 福 (fú, happiness) character:
Four characteristics stand out:
- The stroke thickness is constant (like in seal script, 篆书).
- The brush is never lifted (pushing to the extreme one tendency of the cursive style, 草书).
- The brush never passes twice over the same spot (like in neon signage, as remarked below by Daniel Cheung).
- There are no angles.
Has this style a name? Are you aware of an online font which would satisfy at least the second constraint?
连书 (lianshu) comes to mind, but this is actually a completely different animal.