Defintiely some NutriCal (or NutriStat), just in case.
Baby blankets (Walgreens actually had some for $1 that were cute and soft
Bed
Brush and comb
Toothbrush (I use a baby toothbrush) and doggie toothpaste
X-pen
Puppy Pads ( I also got a frame for them to prevent chewing)
Food (ask what he's eating now and get some of that)
Not necessary (okay, yes they are,lol) but some cute outfits
Lotsa love, which I'm sure that you have

I can't think of anything else right now, but there's bound to be lots of other stuff I missed.
Good luck!!!!!!!!