I'm also growing african horned cucumbers and sikkim cucumbers--both have shelf lives, at room temperature, measured in weeks/months! The african one's fruit is $6.00 a piece here in Canada but they produce heavily given lots of heat and time. Started mine quite early and put them in the greenhouse in May, now they are crawling across the ceiling to the other side. Some people say they're kinda crappy others say not bad, so I'll give 'em a try. The fruit is actually "cute". Sikkims are like the regular cuke in size and shape, but have a darker, almost brown skin. Stays crisp for weeks, so am looking forward to these specimens! Also trying a melon called "Tigger" that is drought resistant--imagine that from a melon? Skin is really like Tony the Tiger too. There are some other interesting cucumbers from India but I will save them for next year.
Stephie- B.C., Zone "8"