To become a sponsor, all you have to do is create a YouTube video about the Universal Minecraft Editor and email it to me at oPryzeLP@universalminecrafteditor.com. The video should be high quality, and either be a complete showcase of the program, or provide useful information, like a tutorial.
I put a lot of effort into this program, and this entire thing is a 1 man job. Therefore, I would hope you would put some effort into your video as well :)
Becoming a sponsor can be mutually beneficial. Your video will help spread the word about the Universal Minecraft Editor. When you're a sponsor, your channel will be added to the welcome page of the Universal Minecraft Editor which can help you grow your channel.
I reserve complete judgement for who becomes a sponsor and I can remove you from the list at any time. In general, the better the video (or the more of them you make) the higher up the sponsor list you will be.