One of the best ideas ever, smocked singlets are a quick and easy gift. I usually make sets of two or three for a new baby, in colours to suit the nursery or the parents' preferences.
Green and yellow for Ollie
Brights for Nicholas (Edinburgh - his mother is also a member of the Ankh-Morpork Knitter's [sic] Guild on Ravelry)
Pink for Peyton
Yellow for Tayah.
I also made a set for Harrison (the baby who received the natural coloured comfort toy of my last post) in 'woodland' colours but apparently forgot to photograph them, along with another set I sent overseas.