Add new comic characters

If you would like us to add a new character, or you have an idea for a new character to propose on comicgen, please add a comment, mentioning:

- What character(s) you'd like to add (e.g. a disabled character)
- An example of what that might look like (a screenshot)
- Who might find this useful, and how they'd use it

Here is a consolidated list of requests:

- [x] [Stick figures](https://news.ycombinator.com/item?id=20053547)
- [x] [US 2020 presidential candidates](https://news.ycombinator.com/item?id=20054601)
- [ ] Characters that represent minorities, people with disabilities: via Alberto Cairo
- [ ] Characters of different age groups (children, middle-aged, elderly, etc)
- [ ] Indian Characters
- [ ] Animal characters (e.g. dogs, cats, fish)
- [ ] Inanimate characters (e.g. cars, chairs, etc) -- but these could have emotions too
- [ ] 3D character objects

https://app.leanboard.io/board/cf68e6b3-22af-4fa7-84e0-0288f9aaf25f