Pepperfilters - Pepper's Snapchat Geofilter creator allows you to easily create a custom snapchat geofilter for your birthday, wedding or event.
Stickersaur - Create digital stickers with just a swipe
Vidcode - Build your own Snapchat filters with code
Snapchat Geofilters - Bespoke filters for different locations on your snaps.
Snapcode Stickers - Promote your Snaps with stickers
Snapspot - Make yourself a perfect custom Snapcode