Assignment: Take this tattoo art and convert it for use on a T-Shirt. Use only Red, White, Yellow Black and Grey.
Time: 4 hours
Original Art:

Final Art:

Assignment: Take this hand drawn logo and clean it up but keep the same feel of it.
Time: 2.5 hours

Originally I tried to use the auto trace functionality in Illustrator but the results were really bad.
So I redrew it by hand using a lightbox:

and then redid that drawing in Illustrator: