Signuno
Signuno is signed Esperanto, derived from Gestuno roots and Esperanto morphology by an anonymous author.
Its alphabet has signs for Esperanto's diacritic letters: Ŝ, Ĥ, Ĝ, Ŭ are derived from their base letters S, H, G, U; while Ĉ and Ĵ (like J) are of Cyrillic origin. H, P, Q are from the Irish manual alphabet, while Z (shaped like an ASL 3) appears to be unique to Signuno. The other letters follow international norms. (That is, similar to ASL but with an Irish T.)
Since the system works to capture Esperanto grammar rather than exploit the options available to sign, rather like de l'Épée's "methodical signs" for French Sign Language, it is unlikely to be viable as an independent sign language. In effect, Signuno is a manual, logographic orthography for Esperanto.
In 2010, the rights to Signuno are to be handed over to the Akademio de Esperanto (Esperanto Academy).