I'm sure this has been done lots of times before, but I think it's pretty cool. Last year, the only supers I grew were yellow Fatalii, Trinidad Scorpion Moruga and Bhut Jolokia. I tried my hand at a few crosses (TSM mother X Yellow Fatalii father) and saved the seeds from a few pods. I dismissed them as a failed cross, and they languished among a few pots of TSMs. It took them forever to ripen (they're now in my little greenhouse) and the yellow color finally got my attention.
They're like my yellow Fataliis but with little stingers, and are quite different from my other yellows this year (TSM Yellow - which, Yellow Brain Strain - which are both fatter and shorter). I look forward to trying one soon!