Creddon - Tweet for a cause and a sponsor will donate $1 to charity
microChange - Snapchat-Venmo hybrid for donating.
Send Mail Get Mail - A postcard-sending website.
DonatePal - The new way to donate to charities
Postacard - Text a photo to send it as a postcard for $3.
Software Donation - Donate tools to enable remote work during COVID-19 outbreak