We actively follow the 5Gyres project, and the group has just announced a competition you definitely want to check out:
"We are launching a contest today to win a trip on the 5Gyres Boat. The winner will spend 10 days on the boat from Tahiti to the Cook Islands while they are studying the amount of plastics in that part of the Pacific. The Chaco Waves for Change art contest is looking for artwork that demonstrates our world's addiction to single-use plastic."
Check out the Wend Magazine article for more details