I can't support in material giving but I can give some resourceful thoughts.

You can maybe get people to donate or give their empty bottles of oil and then top it up with packet oil instead. They are the exact same quality of oil as the palm oil in bottles as seen in this picture.

Packet oil is priced controlled whereas the bottled ones are not making it only RM2.50/kg which you'll save considerable amount of money doing so.

Doing so, you'll get people to recycle plastic bottles as well as stretching the dollar.

Hope this helps :)