If you want to create your own expression stickers than you can create with the help of My Stickers Maker app. Sticker Maker supports lot of innovative backgrounds.
My Stickers Maker app having a outline feature, it is looking a 3D sticker.
My Stickers Maker App Feature:
✔ Select picture from gallery, camera or selfie.
✔ Trace in the picture what you want your sticker to be
✔ Adjust the border by pushing white out line
✔ You can make more precise adjustments by zooming in or out
✔ You can save sticker with out add background
✔ You can add background
✔ Add stickers
✔ Save on SD:Card & Share on Social Media
✔ Share or Delete: Share your Creations with friend and family Via WhatsApp, Flickr, Facebook, Pinterest, Picasa, Line, Twitter, Instagram, Skype and other social networks.