Gryffindor: Here, I got these *hands regular chocolate bars* 

Hufflepuff: I made some chocolate bites and bakes some cookies for you guys! Try them! They're really good! *gently passes them*

Ravenclaw: I tried to be economic about this and I wrapped them for you. *gives beautifully wrapped bought goods*

Slytherin: I got this for you. *Drop plenty of Valentine's goods in front of them*