If this is the case, you should encourage the school district to negotiate a contract that includes excess funds being returned to the schools in order to fund miscellaneous extras. If a different company is being contracted, you should likewise encourage the school district to make this excess funds program a mandatory part of any bids that will be considered. Other options that you may consider are to suggest that the school district look to create a school-wide parent-teacher association. Under such a system, all schools will submit all funds to a common, district-wide account. Individual schools may then apply to use these funds on an as-needed basis. This way there will be more...

When extra funds are needed, often times businesses will be more than happy to help out in order to gain beneficial publicity. See if a local bank would be willing to sponsor a field trip or a local clothing store to sponsor a clothing drive.
Clearly, there are many options available to you in order to come up with the much-needed funds for extra activities and opportunities. By using a combination of these you will most likely raise more funds than you had available under the old, junk food-based system.