Snowblock

 is the slash ship between Snowball and Blocky from the Battle for Dream Island fandom.

Episodes suggesting a friendship
Snowball and Blocky are seen talking to each other, along with Pen and Eraser.

Snowball talks to Coiny and Blocky about how Flower is getting on his nerves.

Snowball chooses Blocky over Firey when choosing the teams, saying that he's better friends with him.

Snowball high fives Blocky because he is safe with 2 votes.

Blocky, along with Eraser and Pen, cheer for Snowball in the bread loaves contest.

Snowball is seen with Blocky, Eraser, and Pen when Firey is deciding who should go on this island and who should not.

Snowball is briefly seen in the beginning with Blocky, as well as Eraser and Pen, when Pen says "Hey, guys, look!" and points at TV.

Neutral interactions
When Needle picks Snowball for her team, Blocky teases them, saying that they're in love.

Snowball throws Blocky in a pile with the rest of his teammates and ties them up so he can drag the entire team.

Episodes suggesting a conflict
When everyone runs out of nails, Blocky bites Snowball's balloon first.

Blocky says "bye bye" with a smile before Snowball is extracted of 18 points.

Fanon
is a popular ship. However, compared to other ships, it's not quite as popular. For example, Blockwood (Blocky/Woody) or Snowlight (Snowball x Lightning).