What if I absolutely cannot give a sacrificial gift because: I am a single-parent, or on a fixed income, or unemployed, or caring for ill parents?

Then please be a steward of what God has given you: enthusiasm, influence, hope, prayer, time, energy, etc. Pray for your leaders, pastors, volunteers, members and for this campaign. Speak positively. Encourage others. Think clearly and ask the right questions. In short, do your best with what you have. Our Lord knows what he put into you, and he knows what he can get out of you!