From my experience getting stuff for non-knife knuts so far, the Micra and the SAK classic always goes down well. But for those who will use it as a tool (as opposed to say cleaning fingernails or opening mail), I would get something that locks firmly.
Had a friend who didn't like knives but loved tools. Got him an SAK that didn't lock (this was before the locking SAKs were available). He did himself a big hurt with the knife when the blade snapped in on him and that put him off for a while... right till I got him one of the locking SAKs. He loves the knife now, but he is still eyeing my LM Wave.