Great News! UMCOR updated this Pastor and Leaders Kit with all new resources to help you promote UMCOR Sunday (formerly One Great Hour of Sharing) on March 11, 2018. You can post some of these resources on all your social media outlets. UMCOR also has a downloadable poster and a bulletin insert you can print out and insert in your church bulletin the week prior to this special Sunday.
They also have new Facebook, Twitter, Instagram and Pinterest images to post on various media outlets.
This kit has everything you need to empower your congregation to give generously.
All of these great resources are available at the link - http://www.umcgiving.org/resource-articles/umcor-sunday-pastor-and-leaders-kit