Most fundraisers are only 20-30%. They would have to sell a lot of product for a decent return. I run huge trips at the end of each school year ($3000) and the only fundraiser I do is for the bus transportation to and from the school/airport. We sell locally baked all natural Thanksgiving pies. The students get $2.50 for each pie they sell that goes into their personal account that I have for science club.
As for the trip itself I encourage kids to do their own fundraising because it is a lot of extra work for the teacher!!!
Like 
Bake sale! Could be fun to include things like croissants and other pastries. Car wash or garage sales have also worked well at my school
Most fundraisers are only 20-30%. They would have to sell a lot of product for a decent return. I run huge trips at the end of each school year ($3000) and the only fundraiser I do is for the bus transportation to and from the school/airport. We sell locally baked all natural Thanksgiving pies. The students get $2.50 for each pie they sell that goes into their personal account that I have for science club. As for the trip itself I encourage kids to do their own fundraising because it is a lot of extra work for the teacher!!!
Car wash. Rummage sale. Holiday grams. Get community sponsors if allowed.