Logo used for T-shirts, hats, promotional for non-profit organization

I am looking for a modern and sleek logo for my non-profit organization. I am open to suggestions for colors and elements/symbols to be included in the logo. The logo will be used on T-shirts, hats, and promotional materials.

Ideal skills and experience:
- Graphic design skills to create a modern and sleek logo
- Creativity to suggest color schemes and elements/symbols that represent the non-profit organization's mission and values
- Experience in designing logos for promotional materials