Anyways, the premise of Teespring is very simple. Go to Teespring.com and create your tee first. The design tool is super simple to use; I played around with it and designed a shirt just for fun. After finishing your design, you start your campaign. You set the price for the shirts being sold (and Teespring even shows the profit made per shirt), the goal and length of your campaign. Then you can share via Facebook, Twitter, or other social media sites, using your own unique url. At the end of your campaign, Teespring prints and ships the shirts, and you get the profit to be used towards your cause or charity!
There are so many causes that you could use Teespring to help fund. One of my personal favorites, after browsing some of the campaigns, is a couple who designed a shirt to raise money for their upcoming adoption. Here's a picture of the shirt they designed-they sold 144 of these!!