The Great Slime Mitosis

House all eight Town Slimes - each has its own recruitment trick:

• Nerdy Slime - beat King Slime (Slippery Shinobi)
• Squire Slime - drop a Copper Shortsword (or copper helmet) onto an ordinary slime; it dons it and ennobles itself
• Cool Slime - can move in while a party is running (Jolly Jamboree)
• Surly Slime - fished up during a Blood Moon
• Elder Slime - found in the underground's Old Shaking Chest, opened with a Golden Key
• Clumsy Slime - floats past Sky Islands on a balloon; pop the balloon carefully
• Diva Slime - throw a Sparkle Slime Balloon (Queen Slime drop) into Shimmer
• Mystic Slime - sprinkle Purification Powder on a jungle Frog

Each needs housing like any NPC. When the eighth moves in, mitosis complete. Gloriously daft.