According to Steven Hammer hybrids between Neohenricia and Stomatium are possible and since both were flowering on my windowsill recently I tried cross-pollinating. At the moment I'm very proud to present you the nice and fat seed pod that my Neohenricia sibbetii is currently growing. This is the first time I see one on a Neohenricia and it's quite exciting.
Also, this particular Neohenricia is friends with a Haworthia limifolia which is in fact this little cutting a year later. Neat! ;)