Hi Qi,
If you haven't ordered yet, please help to add these items:
The First Years Take & Toss Spill-Proof Straw Cups - 10Oz, 4 Pack
http://www.amazon.com/First-Years-Take-Spill-Proof-Straw/dp/B0054YZDWC?ie=UTF8&psc=1&redirect=true&ref_=ox_sc_act_title_2&smid=ATVPDKIKX0DER
U$2.38
Fisher-Price...