Minipets Island Goal: Balls of Yarn

Where do Balls of Yarn originate from? They can be obtained by completing quests for Gigantic Paradise Farm. A select few are obtained through account upgrades, mission rewards, seasonal events and specialty shops. There are 32 Balls of Yarn in all, retired and current, but only 16 are required to meet the Minipet Island Goal.

Complete List (info and pricing as of 8/9/15 rounded up)
*Required to Meet Goal

Ball of Alien yarn (Retired Alien Invasion 2014) = 418,000MP via Shop Search
x Ball of Autumn Yarn (Retired Turkiye Treat 2014) = 229,000MP via Shop Search
x Ball of Black Yarn (Farm Prize) = 40,000MP via Shop Search*
Ball of Blue Yarn (Farm Prize) = 50,000MP via Shop Search*
Ball of Breeze Yarn (Farm Prize) = 237,000MP via Shop Search
Ball of Bronze Yarn (Farm Prize) = 22,000MP via Shop Search*
x Ball of Brown Yarn (Farm Prize) = 6,000MP via Shop Search*
x Ball of Daylight Yarn (Daylight Fairy Prize) = 15,000MP via Shop Search
Ball of Digital Yarn (On Sale at Pirate Ship) = 200 Dukka Coin via Pirate Ship*
Ball of Gem Yarn (On Sale at Beanstalk) = 25,000MP via Shop Search
Ball of Gold Yarn (Farm Prize) = 48,000MP via Shop Search*
x Ball of Green Yarn (Farm Prize) = 39,000MP via Shop Search*
x Ball of Grey Yarn (Farm Prize) = 15,000MP via Shop Search*
Ball of Halloween Yarn (Retired Halloween Snowman 2012) = 480,000MP via Shop Search
x Ball of Moonlight Yarn (Moonlight Fairy Prize) = 489,000MP via Shop Search
Ball of Native Yarn (Farm Prize) = 400,000MP via Shop Search
Ball of Negative Yarn (Farm Prize) = 350,000MP via Shop Search
Ball of Old Yarn (Farm Prize) = 40,000MP via Shop Search
x Ball of Orange Yarn (Farm Prize) = 200,000MP via Shop Search*
Ball of Pink Yarn (Farm Prize) = 11,000MP via Shop Search*
Ball of Plant Yarn (Gigantic Paradise Goals) = N/A via Shop Search
x Ball of Plushie Yarn (Farm Prize) = 44,000MP via Shop Search
x Ball of Purple Yarn (Farm Prize) = 20,000MP via Shop Search*
Ball of Radioactive Yarn (Farm Prize) = 150,000MP via Shop Search*
Ball of Red Yarn (Farm Prize) = 23,000MP via Shop Search*
x Ball of Seasonal Yarn (Retired Advent Calendar 2012) = 15,000MP via Shop Search
Ball of Silver Yarn (Farm Prize) = 50,000MP via Shop Search*
x Ball of Splatter Yarn (Retired Easter Egg Hunt 2013) = 419,000MP via Shop Search
x Ball of Summer Yarn (Retired Pool Party Event 2015) = 65,000MP via Shop Search
x Ball of Toy Yarn (Retired Account Upgrades 2012) = 150,000MP via Shop Search
x Ball of White Yarn (Farm Prize) = 20,000MP via Shop Search*
Ball of Yellow Yarn (Farm Prize) = 77,000MP via Shop Search*

Collection Information:
14/32 in Attic = 43% Complete