Landscape by Sprout Social - An interactive tool for social media image resizing
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
MightyShare.io - Generate Social Images for WordPress
Mailjoy - Delightfully easy direct mail marketing. A DIY direct mail tool created for marketing and growth teams. Design, mail & track personalized direct mail postcards and letters. Digital marketers use Mailjoy to send data-driven mail campaigns.
OgHero - Generate social share images for your blogs automagically
The Simple Postcard - Text a photo to mail it as a postcard