• To use this Asset, just go into the destination project and click on "File" > "Append" , then navigate to the file you downloaded and append the Group (not the Object!) with the name "SD_Card".
• To change the Sticker image, just go to the material called "sticker" and change the image in the orange frame.
• To make your own sticker texture, got to the folder "tex" > "sticker_assets". If you are using GIMP you can just open the project "sticker_template.xcf", otherwise just load "sticker_template.png" into the image editing software of your choice

If you have other problems, feel free to contact me via my blendermarket page!

-Struffel