Stickersaur - Create digital stickers with just a swipe
Pepperfilters - Pepper's Snapchat Geofilter creator allows you to easily create a custom snapchat geofilter for your birthday, wedding or event.
Snapchat Geofilters - Bespoke filters for different locations on your snaps.
Vidcode - Build your own Snapchat filters with code
Snapcode Stickers - Promote your Snaps with stickers
FiveFilters PDF Newspaper - This is a free software project to help people create printable PDFs from content found on the web.