You can insert the social sharing component on a donation form.
  1. Edit the Donation form
  2. Insert an HTML Caption
  3. Save Order and Edit Selected
  4. In the WYSIWYG, click the Component icon (cog wheel)
  5. Choose Social Media
  6. Choose Social Sharing
  7. Edit how you would like the component to display
  8. Click Insert
  9. Click Save