3D Rainbow Hand
This is a fun easy optical illusion that is very easy to do and very cool.
Trace Your Hand
This is pretty obvious, but trace the outline of your hand with a pencil.
Start Drawing Lines
Take a sharpie or any black marker, and draw a line to the hand. Then draw a arc starting at one side of the hand to the other like in the picture. Make sure the right side is a little lower than the left side or vise versa.
Draw Lines Covering the Entire Hand
Continue doing drawing lines till the entire hand is covered.
Color
Color in the between the lines with alternating colors. Highlighters are best for this. Enjoy!