A quick trip to Michaels, and I now have buttons. I wove in all of the ends for the sweater, so just the buttons need to go on. I had originally planned on bright white buttons to look really cheery, but when I held up up to the sweater, they looked way too bright. So I picked there more neutral, natural, and tan colored buttons (and grabbed a second set for the next nephew sweater I make, which will be a dark green).
Coming along nicely! Next, I need to dig out a sewing needle.. wherever that may be.