Don't know where you are, but at our Church/School.
1) The Church "loaned" the school some money 500,000. And it was paid back $100,000 a year from the school.
2) Capital Campaign from Mystery Machine is good.
3) Golf Fund raiser. ($30,000 annually)
4) Night Out ( Auction with donated items). We contribute a week at our summer house, and the school earns 500-700 dollars. Several others do similar things. Can be as small as a party basket, gift Cert to businesses etc. (10,000 annually).
5) Then there is the normal fund raising for school programs too.
6) My old HS does a large 50/50 I think for $1,000 a ticket, as well as a seperate 50/50 for a $100 ticket. But we do not do that.
7) Businesses always like to donate if they know what their money will be going towards, and if it can be related to their business. Eg: Local Lighting/eletrical services can be done for cost, if they can advertize, or get recognition. OR perhaps they could donate some of the lighting fixtures. Gym mats could be donated by another business. Paint etc.
By the way we have 400 famlies in our school. And if you have 100 children in pk, but only 115 in k-8 Your school has alot of potential for growth. Look for people at your school who have experience in Marketing and General Business for help getting this off the ground. Good Luck.