Use of Public Domain or self-created Icons

Hi, I was wondering if it was against the rules to either create my own .svg icon using another software or to download a public domain icon for our website. For example I would be using a icon for: Hamburger, Cup, Straw, Lid, etc.
Thanks,
Benjamin

Hey Benjamin, thanks for double checking. Either of those options we would consider to be in the spirit of this competition, we will allow them!

Sounds great, thank you!