Folks know you can donate to the Salvation Army. And that gives them a mental out. Not many of them know you can also volunteer, and make tangible change.
"Beyond the Kettle": These posters are installed just steps beyond the famous red kettle asking for donations. Reminding folks that they can do more than just donate with the Salvation Army. 
iMessage App. To normalize volunteering, you make it part of the conversation. Literally.

Features:

Location-based services + ministries; Alerts for nearby disaster relief efforts; seek + send programs needing volunteers; branded emoji seal/sticker pack; possible eternal salvation??

Website updates to feature volunteer efforts alongside donations.
With Gianna D'Amico (AD) and Eric Anderson (Strategist)

What's this? There's more?!