Vidcode - Build your own Snapchat filters with code
Snapcode Stickers - Promote your Snaps with stickers
Snapspot - Make yourself a perfect custom Snapcode
Snapchat Geofilters - Bespoke filters for different locations on your snaps.
Pepper - A friendly contact widget for your website
FiveFilters PDF Newspaper - This is a free software project to help people create printable PDFs from content found on the web.