agreed soupdragon - on the sewing bee programme they are putting things together within a few (6 or 7??) hours (though of course they are working on it solidly without interruptions/distractions/irritating obligations like going to work!)
quickest i've managed with knitting (in terms of clothing rather than accessories) is a jumper in three weeks, with bulky weight wool, which was probably about 12 hours' work. but of course i can take knitting on the train and it takes up less space in terms of equipment once i've put my swift and ballwinder away
though as someone said above it is a little odd having the time restrictions, as we would never work like that in real life, unless we're talking about the run-up to christmas when i'm trying to churn out 6 pairs of socks!
i love hearing your compliments received - hopefully that will be me in a few weeks' time once my dressmaking course gets going!