Rainbow Dash cutie mark by Yanoda
https://www.deviantart.com/yanoda/art/Mane-6-Cutie-Marks-Update-4-370063680
Lightning Dust cutie mark by Ambassad0r
https://www.deviantart.com/ambassad0r/art/Lightning-Dust-CM-570373510
AI file: https://www.patreon.com/posts/33331457