Here you go.

Say you cant hike(vacation, be real) unti you get people to donate $5000 to charities.

They can donate to anything they want. Just show you receipt.
In turn, do something for them to get them to donate.
Might be just asking.
Might be an errand, repair, or even yardwork.
But you dont get to go on vacation until you get enough people to donate.
And you dont touch the money.

Regular donations to church or united way dont count
Only new things you prompt them to contribute to.