I drew a pastel of this conch shell I have had since I was a child, and then screenprint it onto tie-dyed t-shirts. The sky and ocean blends right into the background.
remaining stock (on tie-dyed backgrounds unless marked "solid"):
Crew neck tees:

• Size M light blue,  sage.
• Size L sage, purple, or solid Natural

• size M in solid very light blue
• size L in solid pistachio green

• size S  light blue
• size L purple, or turquoise 

• size S  turquoise
• size M turquoise
• size L turquoise or sage

• size M (Mediums are short crop length, sage) 
• size XL  turquoise, light blue, sage, or solid green
• size XXL solid lavender